[Astonishing 45,000 Characters] 25 Recommended Email Delivery Systems Compared! The Complete Manual You Need to See.

Hello, this is Takiguchi from Blastmail.

I sell email delivery systems while working in email marketing.

Due to the nature of my marketing work, I learned about the email delivery market at an astonishing speed.

And, I regretted choosing delivery systems based solely on price without knowing anything until now.

In this article, I have summarized the differences in features and prices for the 25 email delivery systems I recommend, categorized by their characteristics.

Also, I have compiled information on the 4 most recommended products into a document.

Readers of this article likely have challenges with bulk sending or newsletter distribution and are considering introducing a new email delivery system, or switching from a system or tool currently in use.

Rest assured. You will understand everything in this article.

If you are doing bulk email sending or newsletter distribution, an "email delivery system" that allows you to use various functions specialized for email delivery such as list management, scheduled delivery, and effectiveness measurement is more convenient and easier to use than email software, and many companies use email delivery systems for their email distribution.

Also, following the changes to sender guidelines for Gmail and Yahoo! Mail implemented in 2024, Microsoft's mailer service, Outlook, has also implemented similar guideline changes. The demand for introducing email delivery systems is increasing more and more to ensure that important information is delivered reliably.

I have summarized the usage fees and service characteristics of these essential email delivery systems in an easy-to-understand manner.
Please use this as a reference when introducing an email delivery system.

What is an email delivery system (email delivery service)?

An email delivery system is a system that avoids issues that tend to occur during bulk email delivery, such as

• not reaching the recipient

• being sorted into spam

• accidental sending

using a dedicated mechanism, and

furthermore, it is an essential system for email delivery that allows you to perform "list management, HTML email creation, and scheduled delivery".

Email delivery systems are called various things by users, such as "email delivery service," "email delivery tool," "newsletter delivery tool," or "newsletter stand," but they all refer to almost the same thing.

Almost all the emails you receive in your inbox daily for work or personal reasons, such as "newsletters" and "service notifications," are emails sent via an email delivery system.

Probably more than 99% of business people check their email every day.The frequently used method of "email" has long been considered effective as a way to approach customers.

Of course, email approaches are also effective outside of marketing activities. For example, promoting sales, announcing campaigns or events, and implementing email newsletters to increase traffic to websites or blogs are typical examples.

As such, email delivery can be used widely, and because of this, many email delivery systems are provided by numerous companies.

With an email delivery system, you can not only send emails in bulk, but also manage recipients within the system and automatically insert names like "Company Name, Mr./Ms. Name" at the beginning of emails, which reduces the burden of delivery tasks while increasing the effectiveness of email delivery.
In addition, email delivery systems generally come equipped with features such as effectiveness measurement to check email delivery and open rates, as well as HTML email creation functions.

When choosing an email delivery system, you need to consider the balance between these features and costs.

Benefits of an Email Delivery System

There are five benefits to an email delivery system.

• Can send large volumes of email at high speed

• Sent emails are more reliably delivered to customer mailboxes

• Centralized address management reduces the burden

• Can easily create highly designed emails

• Can measure delivery effectiveness

Can send large volumes of email at high speed

In email delivery, delivery speed is a very important factor.

When using a standard mailer, it puts a load on the server, and there are many cases where it takes several hours or more to send a single email. If you want to send time-sensitive information such as flash sales, we recommend using an email delivery system.

However, some email delivery systems have insufficient features to increase delivery speed. When introducing one, choose a service that mentions delivery speed on its official website.

Reference article: Why is speed important for email delivery? Introducing ways to increase delivery speed and recommended tools!

Sent emails are more reliably delivered to customer mailboxes

If you use an email delivery system, you will rarely be flagged as spam even if you send a large volume of emails at once.

If you send a large number of emails without using a system, your server will be flagged as spam, and your emails will not be delivered. Even if you want to measure the effectiveness of your emails, the prerequisite is to ensure that the emails are delivered reliably.

• You have information you want to ensure is delivered

• You want to accurately analyze marketing effectiveness

If you have needs like those above, implementing an email delivery system is essential.

Centralize address management and reduce the burden

Many email delivery systems come with customer management features.
By tagging addresses with information such as "source of acquisition," "age," "gender," and "interests," you can manage your lists more efficiently.

By researching "what keywords readers respond to" and taking measures for each customer, you can increase the effectiveness of your email campaigns. You will be able to work more efficiently by using features like step emails, automatic name insertion, and segmented delivery.

Easily create highly designed emails

Email delivery systems are equipped with an "HTML email editor" that allows you to create HTML emails with images and buttons without any technical knowledge.
Using this, you can efficiently create attractive emails and maximize your marketing results.

Measure delivery effectiveness

What is important in email delivery is checking the response after sending. By using an email delivery system, you can perform detailed effectiveness analysis such as"open rates, click-through rates, and conversion rates".
If you want to know more, this article is recommended. An email delivery expert introduces email delivery systems (services) in detail.

[Thorough Explanation!] What are the benefits of introducing an email delivery service? Introducing types, features, and implementation examples of email delivery services!

[By Step] How to choose an email delivery system

Considering the introduction costs and the effort of initial setup, you won't be switching email delivery systems very often. Basically, you should prepare with the mindset that you will continue using the system once you switch to it.
However, there are cases where people choose based on cost and features, only to find the delivery speed is too slow to be useful, leading to another switch.

In this chapter, we will introduce thesteps you should take to avoid failurewhen choosing an email delivery system.
By the way, since the phase of looking at articles like this, comparison sites, and making inquiries comes after step 4, let's double-check that there are no uncompleted items from steps 1 to 3.

7 steps for choosing an email delivery system

1. Clarify your purpose

2. List the necessary features

3. Check your company's number of delivery addresses and delivery frequency

4. Calculate the budget available for email delivery

5. Compare systems

6. Conduct verification and inquiries

7. Check for any missed items

Detailed procedures are described in the following document, so please feel free to read it.

1. Clarify your purpose

First, let's clarify the purpose of introducing an email delivery system. The necessary features and services will vary depending on your goal.

Examples of purposes

If you are considering switching, I believe you have already completed this step.

In that case, it is also recommended to re-articulate the purpose you are trying to achieve with your current system.

Identify necessary features

Once the purpose is decided, let's list the necessary features.

While it is better to have a wealth of features, if you sign a contract because you are attracted to features other than those suited to your purpose, you will end up not using those features much.

There is a risk of costs increasing, so be sure to check what features are truly necessary by comparing them with your purpose.

Basic features

• Bulk delivery

• Segmented delivery (delivery divided by target)

• HTML email support (utilizing images and design)

• Measurement of open rates and click-through rates

• Personalization (customization for each customer)

• API integration (data integration with other systems)

Advanced features

• Delivery time optimization (AI-based delivery time adjustment)

• MA (Marketing Automation) integration

• Step mail (automated sending via scenario settings)

• A/B testing

If you are considering switching, it is helpful for your comparison to not just list everything you use in your current system, but to think about what can be substituted with other functions or what features are not actually essential and can be cut.

Check your company's number of delivery addresses and delivery frequency

The system you should choose depends on the scale of your delivery. Check the following points.

• Number of registered delivery lists

• Delivery frequency

Once you know the above two items, your monthly delivery volume will be determined.

If you send 3 times a week to 10,000 addresses, that is roughly 120,000 emails per month.

Since the billing models for email delivery systems are divided into address-based and volume-based, make sure to grasp your number of addresses and monthly delivery volume in advance.

If you are starting a newsletter or email delivery for the first time, it is a good idea to assume a frequency of about twice a week, considering the burden of creation at the beginning.

However, if you choose a volume-based billing system that is cheaper because your initial delivery frequency is low, there is a risk that it will be difficult to increase the frequency later. We recommend setting it while considering how much you want to or can send in the future.

Calculate the budget available for email delivery

The budget available for email delivery can be calculated using the following formula.

Expected sales effect from email delivery / Acceptable cost-effectiveness

For example, suppose an e-commerce site with 10,000 addresses starts a newsletter.

It turns out that the monthly cost this company can afford for an email delivery system is 30,000 yen.

*The numbers in parentheses are generally used as standard figures. Check them against your company's goals and actual performance.

Supplementary note on ROAS

ROAS is an abbreviation for Return On Advertising Spend, which means 'advertising cost-effectiveness' in Japanese.

It can be calculated as 'Sales / Advertising Costs'. The higher it is, the better the cost-effectiveness, and the lower it is, the worse the cost-effectiveness.

The ROAS a company can tolerate varies depending on the cost of goods sold and the phase of the business, so set a target value that suits your company.

Comparing systems

Once you have roughly decided on the features and pricing, it is finally time to compare services.

There are mainly the following three ways to compare.

• Check official information on product or service websites

• Use comparison sites to check reviews and third-party evaluations

• Ask people who have already implemented them, such as business partners or friends

While combining each method, narrow down the systems that meet the requirements listed up to Step 3.

If you take the time to do steps 1 to 3, this part of the work will become much easier.

Once you have narrowed it down to 2-3 systems, you can proceed to the next step.

Verification and inquiries

Utilize free trials and demos to check the usability and features of the system.

It is also important to contact the vendor to confirm the support system and the possibility of customization.

Points to check during verification

• Ease of use (is the management screen intuitive?)

• Delivery speed and delivery rate (whether emails are delayed)

• Support system (whether inquiries are handled promptly)

Delivery speed and delivery rate are points that are often overlooked.

Systems that do not mention delivery speed are often unsuitable for large-scale distribution.
If you are sending thousands of emails or more, you should choose a system that can handle at least 1 million emails per hour.

Check for any oversights

Before implementation, let's re-check the following points.

• Does it have the features that match your purpose?

• Can it be operated within your budget?

• Can it withstand your delivery scale?

• Are the security measures sufficient?

• Is it an easy-to-use system?

By following these 7 steps, you can choose the best email delivery system for your company. Ultimately, try it out in practice and implement a system that is easy to operate!

[By Purpose] How to Choose an Email Delivery System

This chart lists recommended email delivery systems by purpose.
Next, I will introduce how to choose an email delivery system by purpose and recommend some systems. In the previous chapter, there was a step to first clarify your purpose, but conversely, if you narrow down your purpose, you can generally narrow down the systems you should use.

For those who have read this far, I believe you have a reason for wanting to implement an email delivery system and a goal you want to achieve through its implementation.

Therefore, from here on, I will explain the points you should compare based on your purpose.

I want to increase my email delivery rate

The delivery rate is an important element for email distribution, but it is a point that is surprisingly often overlooked.

The delivery rate represents the percentage of sent emails that reached the recipient's mailbox. A low delivery rate does not mean “a high rate of being sorted into spam,” but rather “a state where they do not reach the spam folder at all.”

Mass mailing has a higher probability of being judged as spam by the recipient compared to regular email sending. Emails judged as spam are lucky if they end up in the spam folder; in most cases, they are blocked by the recipient's mail server and do not reach the inbox.

An email delivery system is a system that makes it easier for emails to reach recipients even when sending in bulk, but free delivery services or those using CGI may not have measures in place to improve delivery rates.

Features that improve delivery rates include sender authentication technologies like "SPF records and DKIM," and "IP address distribution" to avoid being registered on blacklists. Most paid delivery services are equipped with these features, so there is no need to worry, but be aware that there is a risk that delivery rates will drop when using free services so please be careful.

For example, for purposes such as "price revisions," "school event notifications," or "emergency contacts," if you are sending content that you want to ensure reaches the recipient, choose an email delivery system equipped with features to improve delivery rates.

Recommended Email Delivery Systems

• Blastmail

• MailPublisher

• MailChimp

Related Article: How to improve email delivery rates? We will introduce 5 easy-to-understand measures to increase delivery rates!

What are the "spam filter measures" to increase email delivery rates?

One of the most important factors in choosing an email delivery system is spam countermeasures.
Recently, email software with many users like Gmail and Outlook has also strengthened security, so it is no exaggeration to say that this is the area where measures are most needed right now.

Methods for spam countermeasures include setting up SPF records and DKIM signatures, and IP address distribution to avoid being registered on blacklists. Many paid delivery systems have these features, but we recommend checking before implementation.

Also, regarding spam and security, the thing you want to avoid most in email delivery is a "blacklist."
An email delivery blacklist refers to a "list of IP addresses that send spam." If your own IP address is registered, your sent emails will almost never reach their destinations.

Details are explained in the article below, so please check it if you are interested.

Related Article: Causes of email delivery blacklist registration and how to check/remove them

I want to reduce the costs associated with email delivery

Email marketing is a marketing strategy with very high cost-effectiveness. However, as the number of recipients and frequency increase, it is not uncommon for costs to skyrocket before you realize it.
Also, some people consider introducing an email delivery system because they were using in-house developed email delivery software, but the burden of labor costs and server expenses for development and maintenance was high.

However, if you use price as your only selection criterion, there are cases where there are problems with delivery quality such as delivery rates and delivery speed.
Comparing prices is very important, but if you want to carry out email strategies that truly produce results, don't forget to look at the balance between "price" and "delivery quality".

If you are not sure if the fee for the email delivery system you are currently using is a fair price, please try the cost reduction diagnosis from the banner below.

I want to properly measure the effectiveness of my email newsletters

Even among those who are already sending email newsletters using mailers or email delivery software, there is an impression that many people are not able to analyze the effectiveness of their newsletters.
If you properly measure the effectiveness of your email newsletters, improvement activities can be carried out relatively easily, so it is a waste to just send them and leave them.

If you are sending newsletters and measuring their effectiveness, you should at least ensure you can properly track open rates and click-through rates. Email delivery systems that can send HTML emails are equipped with effectiveness measurement features, so if you want to prioritize performance tracking, choose a system that supports HTML email.

Although it depends on the industry, the average open rate for newsletters is said to be 18–20%. There are countless cases where people felt their newsletters were getting no response, only to find that their open rates were actually above average when they checked. If the open rate is high but the click-through rate is low, it becomes easier to create concrete action plans, such as reviewing the newsletter content or changing the placement of CTAs (buttons or links).

Especially if you are concerned about the cost-effectiveness of your newsletters, measuring the set of "number of deliveries, number of opens, number of clicks, number of applications, and number of conversions" will allow you to gauge the newsletter's response and its contribution to promoting purchases.

Related article: [Newsletter Effectiveness Measurement] Metrics and figures you should know to analyze performance with an email delivery system.

You want to prioritize email design

When targeting B2C audiences, emails are often read on mobile devices like smartphones. Since long blocks of text are difficult to read on mobile devices, the design of the email itself is important to catch the reader's eye.

It is said that readers decide whether to continue reading a newsletter or blog page in just 3 seconds. The part of the page that a reader sees first when they open it is called the "first view," and the decision to keep reading the newsletter is already made based on the fleeting impression they get the moment they open it.

It is quite difficult to make an impact on readers with text alone, and differentiation from competitors is also challenging. Therefore, if you want to instill your brand image or convey information visually with images, you should choose an email delivery system that allows for HTML email delivery.

Also, having HTML email templates or a feature to import custom HTML saves you from having to create designs from scratch, making the email creation process easier.

Related article: What is an HTML email? A thorough explanation of the differences from text emails!

You want to perform large-scale delivery without delays

One point you must not forget when choosing an email delivery system is "delivery speed."

Delivery speed is like a "basic specification" for an email delivery system, representing "how many emails can be processed at once." Even if a plan allows for sending "over 100,000 emails," you must be careful because the email sending speed varies greatly depending on the email delivery system.

If you are planning large-scale deliveries, be sure to check if the provider lists their hourly delivery performance, such as 10 million emails/hour, before implementing it. If it is not listed on the official website, we recommend contacting the email delivery system's support desk to provide them with your delivery performance figures and the number of emails you plan to send, so you can get an estimate of the delivery time.

Related article: What are the causes of email delays and how to deal with them?

You want to link with existing systems via API, etc.

There may be cases where you are already using systems with customer databases, such as business card management software, CRM systems, or e-commerce shops, and you only want to entrust the delivery to an email delivery system.

Using API integration eliminates the need for duplicate customer management or changing delivery statuses, allowing you to perform deliveries just by operating your existing system. It is like adding an email delivery function to your conventional customer management mechanism.

If you want to link with an existing system, check for the availability of API integration. Also, since some services offer free API integration while others charge for it, you should check the service pricing page to see if API integration is an optional cost.

Furthermore, if you are considering an email delivery system specialized for APIs, we recommend "Blast Engine," which is low-cost and has extensive support and documentation.

Email delivery system that makes life easier for engineers | See details of Blast Engine

I want to consult about implementation and delivery content

For companies implementing an email delivery system for the first time, or those feeling some kind of issue with their current delivery, the quality of the support system is also very important to consider.

The main comparison axes for support are as follows.

Basic support

• Is there phone support such as a call center?

• Is there email/chat support?

• Is there Japanese language support?

Support for initial setup

• Is there support during the trial period?

• Is there support for implementation and migration?

Optional support

• Is there editing support for delivery content?

• Is there support for analyzing delivery results?

We recommend that you carefully assess and choose the level of support you need based on your company's phase and requirements.

I want to reduce the effort involved in email delivery as much as possible

It is important for an email delivery system to be simple and easy to use. Since delivery tasks are not one-off, small differences can lead to significant differences in efficiency over the course of a year.

For example, assuming you send emails three times a week, suppose the work time required for one delivery is as follows:

• System A: 15 minutes per delivery

• System B: 1 hour per delivery

At this time, the difference in man-hours required over one year is a staggering 117 hours. In terms of labor costs, that is 200,000 to 300,000 yen.
Since such a difference arises solely from system selection, we recommend that you choose your system carefully.

The main points to consider regarding ease of use are"ease of use of the editor (editing screen)" and the amount of "templates". For services that offer a free trial, be sure to check them in advance before deciding to implement them.

I want to send emails using a system I can use with peace of mind

Email delivery is a delicate marketing measure that handles customer personal information. In the case of overseas services or free services, there are risks such as leakage of personal information and a decrease in delivery rates (as well as a decrease in company credibility).

Service quality should be compared mainly from two perspectives:"human services" and "functional services".

In the case of human services, check how well the services that literally"troubleshooting" and "implementation support"are provided by people, such ashow comprehensive the services are where people respond to you. With overseas services, there may be issues such as no Japanese language support or support hours not being in Japan Standard Time.

Functional services refer tothe perspective of comparing the reliability of the delivery infrastructure itself, such as system uptime. Uptime is the percentage of time that a service is operating normally within a certain period, and top-tier domestic services likeBlastmailachieve 99.9%.

Also, check if there is third-party certification regarding security, such as a Privacy Mark.

It is reassuring if there is a track record of implementation bycustomers where personal information is highly important, such as financial institutions, government agencies, and local municipalities.

5 Popular Email Delivery Systems [Recommended]

This comparison table summarizes the systems that are particularly recommended among the many email delivery systems available.

Detailed functions of email delivery systems and points for implementation are introduced in the latter half of the article.

Download the email delivery system comparison table >

The following five email delivery systems are those that, in addition to having excellent functions and costs, were also highly rated in reviews.

No.1 "blastmail", No. 1 in customer implementation share for 14 consecutive years (Raksul Light Cloud Inc.)

"blastmail" has achieved1st place in customer implementation share for 14 consecutive years due to its high delivery specs, simple ease of use, and low price.

Overall Rating: ★★★★★ If you are unsure, choose this. A high-quality email delivery system that is easy for anyone to use.

Functional Rating: ★★★★ Provides only the functions that are truly necessary, carefully selected.

Price Rating: ★★★★★ Among the lowest in the industry. Excellent cost-performance considering its performance and functions.

Ease of Use: ★★★★★ Simple design that even beginners can use. It's simple, so you won't get lost.

Support: ★★★★ Extensive support via phone and email, with comprehensive manuals and more.

Widely adopted by small to large enterprises, government agencies, schools, and associations, it can truly be called a standard email delivery system. With 25,000 companies having implemented it, it has a proven track record you can trust.

Launching an email delivery initiative is not something done by appointing a dedicated email specialist; there is a need for use across a wide range of departments, such as "General Affairs, Public Relations, and Sales." If you are considering introducing an email delivery system, we recommend a versatile email delivery system that can flexibly adapt even as delivery purposes and personnel change.

Blastmail features a design and operability that is easy to use even for those who tend to be intimidated by IT systems, making it a reliable email delivery system for companies planning cross-departmental use or for those introducing an IT system for the first time.

The main features are as follows, covering everything from bulk sending to the essential functions required for email marketing.

• HTML Email Creation (Editor)

• Responsive Design (Mobile Optimization)

• Form Creation

• Targeted Delivery

• Effect Measurement

• Spam Countermeasures (DKIM Signature)

Since Blastmail includes DKIM signatures in the Standard plan and above, its email delivery rate is extremely high. It also publishes SPF records, making it compliant with the Gmail Sender Guidelines implemented in February 2024.

"blastmail" is characterized by its high performance and cost-effectiveness when compared to other email delivery systems. It is also recommended for those using an email delivery system for the first time or for companies looking to reduce costs from their current system. A free trial is available, so you should try it out for yourself first.

>>Try Blastmail for free

Furthermore, as a spam countermeasure, it adopts "DKIM signatures" and publishes SPF records, so it is already compliant with the Gmail Sender Guidelines implemented in February 2024.

While there are other requirements in the sender guidelines besides email authentication (DKIM signatures/SPF records), all guideline contents are complied with, and you can contact support staff directly if anything comes up, so you can rest easy.

To Blastmail details >

Additionally, Blastmail's Pro plan has the delivery specifications to smoothly handle large-scale distribution of millions of addresses. Since email delivery is possible as soon as the same day, it is the perfect service for those who want to send a large volume of emails in bulk immediately.

>> Check the pricing for Blastmail's large-scale plans

Voices of Blastmail Users (Reviews/Testimonials)

No. 2 For marketing, use 'Haihai Mail' (RAKUS Co., Ltd.)

'Haihai Mail' is a delivery system that is attractive for its extensive features.

Overall Rating: ★★★★ Achieve results with full-scale email marketing

Feature Rating: ★★★★★ Many advanced features such as visit notifications and hot lead extraction

Price Rating: ★★★ Inquiry required as it is not public

Ease of Use: ★★★★ High degree of freedom, and once you get used to it, you can use it quickly

Support: ★★★★★ Thorough support until email delivery success

It has all the features you would be happy to have for full-scale email marketing, such as step emails, A/B testing, and HTML emails.

While it cannot perform scoring like MA tools, landing page creation, or analysis including websites, you can expect sufficient effects from Haihai Mail alone for email analysis.

Also, free email marketing seminars are held regularly.

As for the price, it is slightly on the higher side compared to standard email delivery tools. Since there are several options for plans, you need to understand the pricing plans to some extent before introduction.

Main features are:

• Step email

• A/B testing feature

• Check effectiveness measurement reports in graph format

• HTML email creation (editor)

and more. This is a recommended system for those who want to thoroughly measure email delivery effectiveness and build sales strategies based on analyzed data.

Go to Haihai Mail details >

>> Download detailed materials for Haihai Mail

Additionally, Haihai Mail offers a plan called "Haihai Mail Bridge" that specializes in acquiring BtoB business leads.

With high-end features comparable to MA tools, such as visitor notifications and trigger emails, the marketing cost-effectiveness is outstanding.

>> Learn more about Haihai Mail Bridge

No. 3 For high-speed email delivery via SMTP/API integration, choose blastengine (Raksulite Cloud Inc.)

"blastengine" official website >

"blastengine" is a delivery system that allows you to easily send bulk emails and transactional emails by integrating with your system via SMTP relay or API.

Overall Rating: ★★★★ Achieves high email delivery rates

Feature Rating: ★★★★ Rich in SMTP relay and API integration functions

Price Rating: ★★★★ Offered at a low price

Ease of Use: ★★★ Frees engineers from tedious tasks

Support: ★★★★ Extensive support via email and phone

Achieves high-speed and over 99% high email delivery rates within Japan. By optimizing for each email provider and domestic mobile carrier domain, and delivering emails via a large-scale network, it enables overwhelming delivery rates within Japan.

As a sister service to Blastmail, also introduced in this article, it is built using the high-tech infrastructure of the No. 1 market share email delivery system, blastmail, soemail delivery performance, such as delivery rates, is extremely high due to fast and stable delivery.

Furthermore, blastengine is one of the most cost-effective services in the industry, offered at an affordable price starting from 3,000 yen per month. The pricing structure varies depending on the delivery volume, and the cost per email decreases as you send more.

>> Download detailed materials for blastengine

bGo to lastengine details >

No.4 If you are looking for the best delivery system for sales DX, choose "Mailsales" (Sales Division Co., Ltd.)

"Mailsales" Official Website >

"Mailsales" is an email delivery system supervised by a sales consulting firm to acquire leads (potential customers).

Overall Rating: ★★★★ Email delivery system specialized for sales DX

Feature Rating: ★★★ Minimum necessary features for acquiring potential customers

Price Rating: ★★★★ Low-cost service

Ease of Use: ★★★★ Easy to use because features are streamlined

Support: ★★★ Standard support level

It is narrowed down to the minimum necessary features for acquiring leads, so even small and medium-sized enterprises that "do not have dedicated IT or marketing staff" or find it "difficult to introduce MA (Marketing Automation)" can easily get started. As remote work and telework progress, companies looking for ways to acquire leads are also adopting it across a wide range of industries as a sales tech tool to break away from cold calling.

The paid plan also provides an API, allowing for integration with your own systems.

• HTML Email (with creation editor function)

• Segmented Delivery

• Effectiveness Measurement

• Address Insertion Function

• Multipart Delivery

• API Integration

and more.

Support is also comprehensive, so you can receive follow-up when considering a full-scale implementation.

Go to Mailsales details >

No. 5: Choose 'MailPublisher' (Embarpoint Inc.) for High Functionality and System Integration

'MailPublisher' Official Website>

'MailPublisher' is a hybrid email delivery system with an industry-leading delivery speed of 41 million emails per hour, capable of integrating with MA, CMS, and BI tools.

Overall Rating: ★★★★ Industry-leading email delivery system

Functional Rating: ★★★★★ Supports corporate email marketing from multiple angles with cutting-edge features

Price Rating: ★★ High-end service commensurate with its features

Ease of Use: ★★★ Unknown (as there is no free trial application on the site)

Support: ★★★★★ Experienced support team provides thorough and courteous responses to various types of inquiries

MailPublisher is designed with a focus on system integration, and its major appeal is the ability to use APIs to link with your own services (including cloud-based ones).

Because it is highly functional, the price is also on the higher side, making it a system for large enterprises that want to send large volumes of hundreds of thousands of emails at high speed.

Main features include:

• SMS delivery

• HTML email creation function

• Effect measurement

• Integration with plugins and apps

• Approval function

and more.

Support is also comprehensive, so you can receive follow-up assistance when considering a full-scale implementation.

To MailPublisher details >

>> Download detailed materials for MailPublisher

4 Email Delivery Systems Strong in Delivery Rates and High-Volume Sending

From here, I will introduce 4 email delivery systems that are strong in delivery rates and high-volume sending.

If you have a list of 50,000 addresses or more, or if you anticipate sending to that many addresses in a single blast, I recommend these email delivery systems.

Blastmail Pro Plan / (RAKUS Light Cloud Inc.)

Official Website: https://blastmail.jp/

The Blastmail Pro plan is a dedicated high-volume delivery plan capable of handling deliveries from 50,000 to several million addresses.

Normally, if you want to perform high-volume delivery, it takes at least a week from inquiring with the service to issuing an account and actually sending, but with Blastmail, delivery can be as fast as the same day after inquiry. You can start sending emails immediately after delivery.

Of course, settings such as SPF and DKIM are also possible, so it complies with the sender guidelines announced by major email receiving servers such as Gmail and Outlook.

Furthermore, the Pro plan-exclusive implementation support consulting is attractive, and in particular, the email newsletter critique service is highly acclaimed by many companies.

For example, companies that received dedicated support had the following feedback:

Also, the Pro plan is a nice point as it can be started at a low price from 30,000 yen per month.

You can check the cases and detailed pricing introduced so far by downloading the price list below. It is a good idea to download the materials first.

>> Click here for details on the Blastmail Pro plan

To Blastmail details >

MailChimp / (Rocket Science Group)

Official Website: https://mailchimp.com/

MailChimp allows you to use step email functions and report functions for free, so you can use it with peace of mind even for business.

However, everything is written in English, so it might be difficult to use for those who are not good at English.

The pricing plans are as follows.

Initial Cost Monthly Cost Number of Registered Addresses 0 Yen From $20 From 1,500

The following reviews have been gathered for Mailchimp.

*ITreview cited from

To MailChimp details >

WEBCAS e-mail / (WOW WORLD Inc.)

Official Website: https://www.webcas.jp/email/

WEBCAS e-mail is an email delivery system operated by WOW WORLD Inc., boasting a delivery performance of over 10 million emails per hour*.

*Actual performance value for the entire WEBCAS e-mail cloud (delivery performance for a single client company is over 2.4 million emails/hour)

In addition, a feature of WEBCAS is that it handles various communication tools, not just email delivery systems, but also customer management systems, in-app push notification systems, and LINE message sending functions.

Since inter-system linkage is also possible, it is highly recommended for those who want to build marketing using advanced integration from scratch!

Initial Cost Monthly Cost Number of Registered Addresses From 30,000 Yen From 2,400,000 Yen From 10,000 Yen Unknown (Amount varies depending on the number of addresses)

To WEBCAS e-mail details >

Cuenote FC / (Yumirulink Inc.)

Official Website: https://www.cuenote.jp/

Cuenote FC has an email sending capacity of over 10 million emails per hour (*) and is rich in features that support effective email marketing.

It provides features such as effectiveness measurement, automatic CSV import, an intuitively operable HTML editor, targeted delivery, step emails, and scenario emails.

It is an email delivery system recommended for large companies with many lists or those looking for a high-performance system.

*Aggregated based on successful delivery counts for Cuenote FC (1 delivery server).

Go to Cuenote FC details >

4 Email Delivery Systems Known for Ease of Use and Simplicity

Email marketing managers often handle email distribution as part of other marketing initiatives, public relations, real estate, or sales activities.

To manage email distribution amidst such a busy schedule, it is important to use a simple and easy-to-use system.

From here, we will introduce email delivery systems that have a reputation for ease of use and operability.

blastmail Standard Plan / (RAKUS Light Cloud Inc.)

Official Website: https://blastmail.jp/lp/mail-beginners/

The blastmail Standard plan is an email delivery system designed for beginners, with the goal of making it easy for anyone to send emails.

It features a 'truly easy-to-use' UI created by gathering feedback from over 25,000 companies, the industry's No. 1 track record. is its hallmark.

As shown in the video below, the ability to intuitively create HTML emails, send them, and measure results with ease is highly attractive.

blastmail is equipped with the following features to keep operations simple and easy.

blastmail Services (Partial)

• Abundant HTML email templates

• Email editor that can be operated without a manual

• Measurement function that allows for one-click effectiveness tracking

• Comprehensive support via phone/email/support site

• High-speed mass delivery to reduce time from start to completion

Since the free trial of blastmail allows you to actually send emails, we highly recommend trying it out if you want to verify its ease of use.

Go to blastmail details >

Combz Mail Plus / (Combz, Inc.)

Official Website: https://plus.combz.jp/

Combz Mail Plus is an email delivery system characterized by its ease of use.

It supports delivery of up to 500,000 emails and has a track record of being used by over 20,000 companies.

The management screen is easy to operate even for those using an email delivery system for the first time, and with a 24-hour monitoring system in place, it is safe for beginners.

Initial Cost: Monthly Cost: Registered Address Count: 0 yen~ 5,500 yen~ 1,000 addresses~

Combz Mail Plus has gathered the following reviews.

* Cited from ITreview

To Combz Mail Plus details >

arara message / (arara inc.)

Official Website: https://am.arara.com/

arara message is an email delivery system with a wide variety of HTML email templates.

It comes standard with rich features such as 'HTML Easy Mode' that allows you to create HTML emails in 3 minutes, 'step mail,' and 'effect measurement,' reducing the effort required for email delivery.

In addition, it offers over 150 ready-to-use HTML email templates for occasions like New Year's greetings and summer greetings, making it a recommended service for those who want to start sending immediately.

However, arara message is a pay-per-volume email delivery system, so there is a risk that costs will become high if you send too many emails.

If you cannot handle sudden increases or decreases in delivery volume, you may end up paying high excess charges, so be sure to check in advance how much volume your company's email delivery will be when introducing it.

* Excess charges will be incurred when the limit is exceeded.

The following reviews have been submitted for arara message.

*Cited from ITreview

Go to Arara Message details >

Mail Shonin / (EMZ Co., Ltd.)

Official Website: https://mshonin.com/

"Mail Shonin" can be used starting from 4,180 yen per month, and it is a system that allows unlimited delivery for up to 1,000 addresses.

It comes equipped with HTML email templates and allows you to use many features such as effectiveness measurement and form functions.

Additionally, the operating company's corporate website states a "Thorough Support Declaration!" to ensure customers can use it to its full potential.

There is unlimited support via phone and email, and online operation briefing sessions are held twice a month.

Go to Mail Shonin details >

4 Email Delivery Systems for Those Who Want to Use Them as Cheaply as Possible

From here, we will introduce ultra-low-priced email delivery systems provided by domestic companies.

These are recommended email delivery systems for those who believe that minimal features are sufficient to improve cost-effectiveness.

However, extremely low-priced email delivery systems may have issues with delivery servers or domain authentication, which could result in lower delivery speeds and arrival rates.

Also, there are cases where there is no phone support or no direct phone number listed, so caution is required when sending emails that handle sensitive customer information.

Orange Mail / (Orange Spirits Co., Ltd.)

Official Website: https://mail.orange-cloud7.net/

"Orange Mail" is an email delivery system that can be used for 2,980 yen per month, and it can also be used for free if the number of registered addresses is 100 or less.

Since it is an email delivery system used without linking to other systems, there are no additional charges.

The operation is simple and the pricing structure is easy to understand, so it is also recommended for beginners.

To Orange Mail details >

>> Download detailed materials for Orange Mail

WiLL Mail / (Sapana Inc.)

Official site: https://willcloud.jp/

"Will Mail" is characterized by its cost-effectiveness, which is comparable to blastmail, and an editor that allows you to easily create email newsletters.

Since you can create HTML emails just by using mouse operations, there are reports that the time taken to create newsletters has been reduced to 1/4 of what it was before implementation.

The pricing structure also has unique features, and you can freely switch between the following two options every month:

• Pay-as-you-go based on the number of emails sent

• Fixed-rate billing based on registered addresses

You can freely switch between these two every month.

You can also change to pricing model (2) only during periods when you want to send a lot of emails, such as before sales or campaigns, allowing you to use the email delivery system without waste.

Main features include:

• Easy operation system completed with just a mouse

• Creation of smartphone-compatible HTML emails

• Effect measurement

• Step email delivery function

and more.

As mentioned above, the price allows you to switch between two types of plans every month.

In addition, there are Premium plans and Single plans, and the fixed-rate billing for the Single plan is as follows.

Go to Willmail details >

>> Download detailed materials for WiLL Mail

Meruhaikun / (Delightful Co., Ltd.)

Official site: https://www.meruhaikun.com/

Meruhaikun is characterized by its relatively low price among paid email delivery systems.

Although it is low-priced, it is equipped with essential features such as step emails, targeted delivery, and multipart delivery.

However, you need to be careful because the available features and support content are strictly limited depending on the plan. there is a need.

Also, the lowest price is only available with a 12-month contract paid in a lump sum for one year, so you cannot use it at this price for short-term use or trials.

Go to Meruhaikun details >

AutoBiz / (BizCreate Co., Ltd.)

Official site: https://autobiz.jp/

AutoBiz is an email delivery system centered on step emails. The lowest price is super cheap, starting from 1,815 yen per month.

The Super Light plan can send step emails, but conversely, it cannot perform bulk delivery, so those who want to send large volumes such as newsletters need to register for the Light plan or higher.

Also, since the pricing adopts a per-message billing system, you need to pay excess charges if you want to perform bulk delivery beyond the specified package.

Go to AutoBiz details >

Download comparison table of email delivery systems >

5 Highly Functional Email Delivery Systems

From here, I will introduce email delivery systems that are strong in rich features such as marketing and multi-channel delivery.

In addition to post-delivery analysis, introducing highly functional tools may help with your daily marketing activities.

Haishin Mail Bridge / (RAKUS Co., Ltd.)

Official Website: https://www.hai2mail.jp/bridge.php

"Hai2mail Bridge" is a marketing tool specialized in acquiring B2B business meetings. It is equipped with all the necessary features to secure meetings, including not only email delivery but also visitor notifications and scheduling.

It is recommended for those who want to not only improve efficiency but also effectively acquire appointments, as it offers features not found in other plans.

This is an email delivery system recommended for those who could not successfully utilize complex MA tools but want to maximize the effectiveness of their email marketing.

Please contact us for pricing plans.

Go to Hai2mail Bridge details >

EXPA/ (Expert Co., Ltd.)

Official Website: https://ex-pa.jp/

"EXPA" is a service that combines email delivery functions with features such as website creation.

It also includes features for creating recruitment forms for seminars and events, as well as managing event sales, so it may be perfect for companies planning events.

Since the COVID-19 pandemic, an increasing number of companies are aiming to acquire leads by hosting webinars (online seminars).

Event Marketing requires email delivery, recruitment forms, and event management, so you can operate efficiently by introducing "EXPA".

Go to EXPA details >

MyASP (Tool Lab Co., Ltd.)

Official Website: https://myasp.jp/

Despite its low price, MyASP is an email newsletter platform that is fully equipped with all necessary CRM features, including not only email, SMS, and LINE delivery functions, but also form and customer management features.

It is a recommended newsletter platform for those who are not overly concerned with delivery performance or quality, but want to complete all web-related tasks, such as website creation and form management, with a single tool.

Go to MyASP details >

3 Recommended Free Email Delivery Systems

From here, we will introduce email delivery systems that can be used for free.

Compared to paid email delivery systems, there is some concern regarding security, but it is recommended for those who want to try it out before fully committing to email marketing.

acmailer / (Seeds Co., Ltd.)

Official Website: https://www.acmailer.jp/

acmailer is an installable email delivery system, so once the installation and server configuration are complete, you can use all features for free for an unlimited period. (16,000 yen only if you wish to remove the copyright notice.)

While it allows for targeted delivery and scheduled delivery even for free, you need to choose your own mail server and perform the initial setup, so it might be difficult to implement if you lack that knowledge.

Honestly, I think it is not suitable for most people reading this article.

To acmailer details >

Mag2 / (Mag2 Co., Ltd.)

Official Website: https://www.mag2.com/

"Mag2" is an email delivery system that can be used for free. It is a well-known system specialized for newsletter distribution, but it has the disadvantage that you cannot see the list of people you are sending to.

Since it only sends emails in bulk, you cannot use the distribution list for other services.

There are some options available only in the paid plan, which allow you to advertise your own newsletter within the site.

The pricing plans are as follows.

To Mag2 details >

Market Price for Email Delivery Systems

Some of you may be considering introducing an email delivery system but are unsure what a reasonable price is in the first place.

Here, I will explain the market price for email delivery systems.

How to determine a reasonable price

Email delivery system prices range from ultra-low-cost services at around 2,000 yen per month to high-end services costing over 100,000 yen.

Prices vary significantly depending on features, delivery volume, and support systems, so be sure to contact each company to confirm whether they have the necessary features.

Also, as mentioned earlier, if you are a beginner, we recommend introducing a system with a low price.

However, since free systems may have security issues, we recommend choosing a paid tool if you want to send emails safely.

Pricing Models for Email Delivery Systems

There are multiple billing methods for email delivery systems. Choose the one that is appropriate for your delivery frequency, purpose, and literacy level.

Cloud-based vs. On-premise

The billing models differ between cloud-based and on-premise types.

Cloud-based systems are generally provided through monthly or annual subscription contracts with the provider, and you can use the service immediately after signing up. In contrast, the on-premise type (license agreement) is a pattern where you build the server and software in-house. While the introduction cost is high, there are almost no monthly fees.

Related Article: Cloud-based Email Delivery Systems are Recommended! Comparing Features with On-premise Types

Volume-based Billing vs. Address-based Billing

Even within cloud-based email delivery systems, there are two types of billing models.

Volume-based billing is a system where the fee fluctuates according to the number of emails sent per month. On the other hand, address-based billing determines the monthly fee based on the number of registered email addresses.

We recommend the address-based billing system. It eliminates the need to manage the monthly number of emails sent and can handle sudden increases in delivery. With volume-based billing, there is a possibility that you may be unable to send emails or incur excess charges if you exceed your limit.

What is the difference between free/low-cost services and paid services? Why are they low-priced?

As introduced so far, there are email delivery systems that can be used for free or services that can be used at a very low price of 1,000 to 2,000 yen per month.

Why are these services able to be provided for free or at a low cost? Naturally, there is a trick behind being able to deliver at a low price. Here, we will explain why low-priced services can be provided inexpensively.

Low Delivery Quality and Reachability

With low-priced services, you may not be able to use a custom domain, or the distribution of sending IPs may be weak, so they may be easily flagged as spam.

Especially if you want to ensure that emails reach important customers, it is desirable to use a paid plan with stable delivery quality. It is safer to use low-priced services with the mindset of it's lucky if it arrives.

Limits on Delivery Volume and List Size

Many services provided at a low price have limits on the number of emails that can be sent and the number of lists that can be registered.

For example, conditions such as "up to 1,000 emails per month" or "up to 500 registered contacts" are common. By limiting the delivery scale in advance, the system is designed to reduce server load and operational costs, allowing it to be offered at a low price.

Minimal support structure

You generally cannot expect extensive support with free or low-cost plans.

Inquiries are often limited to email support or focused on FAQs based on self-resolution, and immediate support via phone or chat is usually restricted to paid plans.

For example, with WillMail, a direct phone number is not disclosed to users; instead, an operator calls the customer based on the details entered in the inquiry form.

Since support response is a significant cost for the operator, keeping this to a minimum is how they achieve low prices.

Keeping costs down through advertising and feature restrictions

Free or low-cost email delivery systems have mechanisms where the operator can generate revenue in other ways, such as by including advertisements in the email footer.

Also, advanced automation and detailed analysis features are only available in paid plans, while free plans are limited to basic delivery. The operating company maintains low prices by generating advertising revenue and encouraging upgrades to higher-tier plans.

Need to anticipate future expansion

While starting for free and easily is attractive, you will need to switch to a higher-tier plan as soon as your delivery scale grows even slightly.

Low-cost plans are ideal for trials or small-scale operations, but if you want to achieve continuous marketing results, it is safer to plan for a transition to a paid plan or another company's service in advance.

What is email delivery in the first place?

There are many terms for the task of sending emails to multiple people simultaneously, such as "email delivery," "bulk sending," "mass distribution," and "broadcast email." (Since they all mean sending a large number of emails at once, there is no significant difference in their definitions.)

In this chapter, we will briefly explain what email delivery is and what it is useful for.

Reference article: What is email delivery? A thorough explanation of usage types, points to note when implementing, and recommended systems

Delivery purposes and usage

The main purposes of email delivery are diverse, including providing information to customers, promotions, surveys, event announcements, and sending disaster or alert information.

In the modern era, the ability to send emails quickly and in large quantities has become essential not only for business purposes like improving customer relationships but also for public institutions, local governments, schools, and other "organizations that need to ensure important information is delivered."

The effectiveness of email delivery

Email delivery is a highly effective strategy for B2B companies to generate leads and sales.

According to the 2023 B2B Marketing Survey, 50% of B2B marketers state that among multiple marketing strategies,email marketing is the most influential channel.

According to the 2025 report by the Content Marketing Institute (CMI), 71% of B2B marketers utilizeemail newsletters as part of their content marketing strategy.

Basic Mechanism of Email Delivery Systems

We have introduced recommended email delivery systems so far, but some of you may be wondering how to choose one. Here, we will explain the mechanism of email delivery systems so that you do not make mistakes when selecting one.

The Overall Flow of Email Delivery

The diagram below shows the flow from creating an email until it reaches the specified email address.

The flow in chronological order is as follows.

Email Delivery Flow

• The email sent from the email software reaches your company's email server.

• The IP address (address) of the destination email server is looked up from the recipient's email address.

• The email is forwarded to the destination email server.

• Once the email reaches the recipient's email server, it arrives in the email software as a new message.

Details are explained in the following article.

Related Article: Explanation of how email sending and receiving works! Understand terms like SMTP, POP, IMAP, and DNS!

Email delivery systems achieve smooth email distribution by automating and streamlining the processing at each stage of email sending, delivery, and receipt.

Why does sending a large volume of emails take time (delivery delay)?

There are several reasons why sending a large volume of emails at once takes time. We will explain the main factors in an easy-to-understand manner.

Sending Limits (Throughput Limits)

Email servers and email delivery services have limits on the 'number of emails that can be sent per second (throughput)'.

For example, if you can only send 100 emails per second, it will take 100 seconds to send 10,000 emails.

Limitations on the receiving server side

Receiving servers such as Gmail or Yahoo Mail may block or temporarily delay emails if a large volume arrives at once as a spam countermeasure. This also affects the overall delivery speed.

Bounce and error handling

If you send to an address that does not exist or has rejected your mail, a bounce (error return) occurs, and processing that can also take time.

Processing load on the delivery system side

If there is a lot of customization during delivery, it may take time to process.

Examples of processing performed during email delivery

• Email personalization (inserting names, etc.)

• Generation of attachments or HTML emails

• Insertion of tags for log recording and analysis

When processing these in large quantities, the system may become overloaded, causing processing speed to drop.

Communication line bandwidth limitations

When sending a large number of emails, you are affected by network bandwidth (the width of the communication road). It may slow down during congested times. Many delivery services manage emails in a "queue" (waiting list) and distribute them little by little. This is also to avoid being identified as spam.

How to eliminate delivery delays

As mentioned above, there are many causes for delivery delays. When a delivery delay occurs, important information does not arrive at the desired time, which has major disadvantages such as reduced marketing effectiveness.

Also, when sending notifications that involve human life, such as emergency alerts or evacuation advisories, "it was late" is not an acceptable excuse, so be aware of the risk of delays.

To eliminate delivery delays

• Send in segments (e.g., 10,000 emails → 2,000 emails x 5 times)

• Send during gaps or off-peak hours

• Use highly reliable delivery services (such as Blastmail, Blastengine, etc.)

are methods you can take.

In particular, Blastmail is an email delivery system that has been continuously providing service for over 20 years, with thorough development to avoid the risks mentioned above, achieving high-speed delivery of 15 million emails per hour.

It is a recommended system for those who want to choose an email delivery system they can trust.

Blastmail Official Website: https://blastmail.jp/

The difference between "Cloud-based" and "On-premise" that you should know when choosing a system

Cloud-based refers to a service where you use the provider's service via the internet without needing to install servers or software yourself. Generally, you contract with the provider through a monthly or annual subscription, and you can use the service immediately after signing up.

In contrast, the on-premise type (license agreement) is a pattern where you build the server or software in-house. While on-premise can mean building from the server infrastructure, there are also types where you purchase mass-delivery software and install it on your computer to use. It is also common to create only the program using CGI and run it on a server.

Features of Cloud-based Email Delivery Systems

Cloud-based email delivery systems are the most common services in the current email delivery system market. Here, we introduce the features of cloud-based email delivery systems.

1. Everything is completed on the web

Since cloud-based systems use email delivery services via the internet, everything is completed on the web. Also, because you use the service on the web, you can access it from anywhere, regardless of location or device. For example, it can be used even when you are on a business trip or if your usual PC experiences a malfunction.

2. No need to prepare an email delivery environment

Cloud-based systems operate using the servers and network environment of the cloud service provider. Since you can leave troubleshooting to them, there is absolutely no need to prepare an in-house delivery environment, and as long as you have an internet environment and a web browser like Google Chrome, you can use it immediately.

3. You can start operations without incurring costs

Most cloud-based systems use a subscription (monthly purchase) method where you pay fees according to the usage period. As mentioned above, there is no need to prepare an email delivery environment, purchase in-house servers, or provide maintenance costs, so you can start and operate email delivery without initial costs.

For example, our service, Blastmail, uses a subscription method, and the cheapest plan is available from 4,000 yen per month.

4. Security measures are also in place

Email delivery involves handling personal information such as "email addresses."

Therefore, most cloud-based email delivery service providers implement advanced security measures. Of course, security standards vary by company, but by leaving server management and the like to professionals, you can perform email delivery safely. If you are selecting a service with an emphasis on security, it is best to choose a service that has a Privacy Mark or comes with standard data communication encryption.

For details regarding the security of email delivery systems, please refer to the following article.

What are the security measures for email delivery systems? A thorough explanation of risks and countermeasures

⑤ Version upgrades and plan changes can be done immediately

In the case of cloud-based services, software version upgrades and the like are managed by the service provider. Additionally, it is possible to freely combine plans and the presence or absence of options.

Therefore, even after introducing the service, you can change plans or add features according to the situation, or remove unnecessary features.

Features of On-Premise Email Delivery Systems

While cloud-based systems are the leading services in the current email delivery system market, there are cases where using an on-premise email delivery system is recommended for some companies.

① Customer information management can be completed in-house

On-premise systems involve installing email delivery software on your own servers or computers. Unlike cloud-based systems, since customer information cannot be accessed over the web, you can complete customer management in-house.

② High costs are required for introduction and operation

On-premise systems are a "one-time purchase." While there are no monthly fees, the initial cost of introduction is high.

Although it varies depending on the service, generally, an introduction cost of several tens of thousands to several million yen is required.

In addition, there are costs for preparing the delivery environment, such as setting up email delivery servers and configuring the network environment, as well as maintenance costs.

③ Security measures must be handled in-house

When using an on-premise system, you must handle security measures yourself. Since email delivery involves handling the personal information of registrants, it is necessary to implement robust security, and personnel capable of responding quickly to issues are also required.

Because the risks are high and funds are also required, we do not recommend using an on-premise system if you cannot implement thorough security measures.

The recommendation is "Cloud-based"

While there is no particular reason why one is better than the other, cloud-based systems are easier to keep costs down, do not require server-side or programming knowledge, and do not require delivery tuning, so unless your security requirements are extremely strict, we recommend the "cloud-based" type.

According to the 2023 Communications Usage Trend Survey conducted by the Ministry of Internal Affairs and Communications, the percentage of companies using cloud services has been on an upward trend since 2013, and in 2023, 77.7% of the total responded that they are "using it company-wide or in some offices/departments."

Furthermore, the background to the progress of cloud-based adoption is the rising security level of cloud services. By introducing the latest security equipment and performing regular updates, a highly secure environment is always available for use.

Comparison Item | Cloud-based | On-premise | Initial Cost | Low | High (Server and license purchase costs) | Monthly Fee | Relatively low | High depending on conditions | Time to Implementation | Short (can be used immediately in some cases) | Long (time required for equipment purchase and setup) | Maintenance Cost | Low (paid by the system provider) | High (requires in-house management and updates) | Integration with other systems | Easy (APIs are often provided) | Can be handled flexibly | Security | By the system provider | Can be completely controlled in-house

Related Article: Cloud-based email delivery systems are recommended! Comparing features with on-premise types

Points to consider when choosing an email delivery system

As introduced so far, there are many email delivery systems, but first, let's verify whether to use the "cloud-based or on-premise" type explained in the previous section.

There are many other points to consider when choosing an email delivery system. Among them, I will introduce 6 representative points.

Points for selecting an email delivery system

• Is the price appropriate?

• Are the necessary features included?

• Can HTML emails be sent easily?

• Are there any concerns or worries about delivery speed?

• Is effectiveness measurement possible?

• Is the support comprehensive?

Is the price appropriate? Are the necessary features included?

When choosing an email delivery system, the two most important points are "Is the price appropriate?" and "Are the necessary features included?"

Many features included in email delivery systems are provided by service providers to increase unit prices, and are often unnecessary.

For beginners in mass email delivery, we recommend choosing a low-priced service.

Conversely, if you have a dedicated email newsletter manager and want to engage in intensive email marketing, a service with step-mail functionality would be better.

Are there any concerns or worries about delivery speed?

It is often overlooked, but it is no exaggeration to say that delivery speed is the most important item in an email delivery system.

While support and features can be changed depending on each company's strategy, delivery speed is backed by technology accumulated over many years, so it cannot be imitated overnight.

Why delivery speed is important

• It serves as an indicator of a service's technical capability

• It maximizes marketing effectiveness

• It prepares you for cases where urgent notifications are needed

• It increases customer experience value

The benchmark for delivery speed is 1 million emails per hour. Except for some cases such as sole proprietorships or hobbyist newsletter distribution, check the official performance claims on the website to ensure it is 1 million or more.

Related article: Why is speed important for email delivery? Introducing ways to increase delivery speed and recommended tools!

Can you send HTML emails easily?

HTML email is now an essential email delivery format for email marketing. Many email delivery systems are equipped with editors that allow anyone to send HTML emails easily.

With HTML email, for example, you can do the following:

• Insert images

• Change text color

• Change heading sizes

Previously, HTML emails were sometimes used for spam and were considered a security issue, but nowadays, email software and receiving devices have strengthened security, so there is no problem.

Related article: Free HTML email templates [For beginners]

Can you measure effectiveness?

Currently, "email marketing" is attracting attention around the world. The basics are the following two points:

• Email open rate

• Link click-through rate

These can be easily measured by using an email delivery system that can send HTML emails.

Please refer to the following article for a detailed explanation of email marketing.

Related article: What is Email Marketing? A Thorough Explanation Including Background Trends and Success Stories

Whether support is comprehensive

In Japan, product support is taken for granted, but overseas, it may be paid or lack phone support.

When you actually use an email delivery system, you often encounter unexpected questions or minor doubts. Therefore, if you are using an email delivery system for the first time, be sure to choose a service with comprehensive support.

Also, many email delivery systems distributed in Japan are made overseas, so check in advance if there is no Japanese support or no support at all.

Whether a free trial is available

One of the key points when choosing an email delivery system is whether a free trial is available.

By using a free trial, you can actually test the features, usability, and security of the email delivery system.

You can also measure the effectiveness of email marketing during the free trial period. However, keep the following points in mind when using a free trial.

• Available features and delivery volume may be limited

• It may automatically transition to a paid plan

• Charges may apply if you do not cancel during the trial period

List of main features of email delivery systems

Email delivery systems are equipped with the following features.

The availability of features varies by service, so use this as a reference to identify the features you want to use.

Email creation support features

Email creation support features in an email delivery system are functions that allow you to easily create email designs and content.

Examples of email creation support features include the following.

Email delivery support features

Email delivery support functions are features designed to conduct email marketing effectively.

Examples of common email delivery support functions include the following:

Effectiveness Verification Functions

Effectiveness verification functions in an email delivery system are features used to measure the results of email marketing.

Specific examples of these functions include the following:

• Open Rate/Click-Through Rate Measurement:A feature that quantifies in real-time the number of times an email is opened by recipients and the number of times links within the email are clicked. Some systems can measure the click count for each individual link within an email. This is useful for finding areas to improve in the subject line or body content (open rate measurement is only possible for HTML emails).

• Delivery Error Analysis:A feature that analyzes the reasons why an email did not reach the recipient. It makes it easier to identify causes such as incorrect recipient addresses, server downtime, or being caught by spam filters.

• Google Analytics Integration:A feature that tracks the behavior of recipients who were directed to a website from an email using Google Analytics. It allows you to measure the number of conversions and conversion rates of site visitors coming from emails.

List Management Functions

List management functions refer to features for efficiently managing customer data that is the target of email marketing.

Representative examples of these functions are as follows:

• Bulk Registration/Extraction/Deletion of Customer Data:A feature to register customer data in bulk using CSV files, or to extract or delete customer data that meets specific criteria in bulk. This improves the efficiency of list management.

• Creation of Registration/Unsubscription Forms:A feature that allows you to create forms for registering to or unsubscribing from customer lists. By creating a form and placing it on a website, customers can register or unsubscribe themselves.

• Blank Email Registration Function:A feature that allows users to be registered to a mailing list simply by sending a blank email to a specified email address.

• Registration QR Code Generation:A feature that can convert registration/unsubscription form or blank email information into a QR code. One-click unsubscription is a feature that allows easy unsubscription by clicking a specified URL in the email body.

• Automatic Deletion of Error Addresses:A feature that automatically removes addresses from the list when a delivery error occurs. This can reduce email delivery costs and improve the accuracy of open rate measurements.

For more detailed information on these functions, please refer to the following article as well.

Related Article: Summary of Email Delivery Service Functions! Advice on Points to Consider When Choosing an Email Delivery Service

What are the Gmail Sender Guidelines you should know when sending emails?

As of February 2024, the guidelines that email senders must follow when delivering emails to Gmail users have been updated. The Gmail Sender Guidelines are guidelines published by Google for email senders to protect Gmail users.

[Google Official] Gmail Sender Guidelines: https://support.google.com/mail/answer/81126

These Gmail sender guidelines can be divided into requirements that email senders must meet and requirements that delivery systems must meet.
If you are considering introducing a delivery system, we recommend choosing one that meets the requirements listed below.

Requirements that the delivery system must configure

• Enable one-click unsubscription

• Email format must comply with RFC 5322

• Mandatory PTR record configuration

• Mandatory ARC header configuration

If you do not follow the Gmail sender guidelines, there is a high possibility that your emails will not reach Gmail users. Please introduce a delivery system that meets the above requirements, and ensure that email senders follow the requirements below when sending emails.

Requirements that email senders must configure

• Mandatory email authentication (SPF, DKIM, DMARC)

• Use TLS connection for email transmission

• Keep spam rate below 0.3%

• Make it easy for recipients to unsubscribe from emails

• Use an email service provider

For more details on the Gmail sender guidelines, please refer to the article below.

[Solution] Gmail guidelines changed in February 2024! Compliance is mandatory for sending 5,000 or more emails per day! In October 2023, Gmail's email sender guidelines were updated. https://support.google.com/mail…

Also, Microsoft's Outlook and Yahoo!'s Yahoo! Mail have announced similar guidelines.

Reference article: Yahoo Japan Enforces DMARC Adoption for Users in 2025

Reference article: [For Non-Technical Users] Outlook announces new requirements for bulk email senders. We have summarized the targets, risks, and countermeasures.

Disadvantages of email delivery systems

Email delivery systems offer many benefits, and it is no exaggeration to say that they are essential when sending mass emails.

However, email delivery systems have disadvantages as well as advantages.

The disadvantages of email delivery systems are the following two.

• It costs money

• You may not be able to master the features

Email delivery systems are basically paid services.

Therefore, if your email distribution list is small, such as 50 addresses, it may not be cost-effective. As a guideline, it is good to have 1,000 or more addresses on your distribution list.

Also, instead of choosing an expensive email delivery system with many features at the beginning, try to choose an inexpensive one that has the necessary features. If you choose based on the abundance of features, you may end up not being able to use them and just paying high costs.

Our service, Blastmail, achieves overwhelming low prices while maintaining ease of use and high delivery quality due to its large number of customer installations. First, please use the free trial to master how to use an email delivery system.

>> Click here for details on Blastmail

What is an email relay service? What is the difference from an email delivery system?

There is a service often confused with email delivery systems called an "email relay service." Strictly speaking, an email relay service is categorized as a type of email delivery system, but because its functions and purposes are specific, we recommend thinking of them separately.

Email delivery systems are mainly used for marketing purposes and are tools for efficiently sending newsletters, campaign emails, step emails, etc.

Features of email delivery systems

• The user interface is well-organized, allowing even non-engineers to easily create and send emails through screen operations

• Equipped with customer list management, scheduling, and effectiveness measurement functions such as open rates and click-through rates

On the other hand, an email relay service has the role of relaying emails sent from your company's system or server to the recipient.

Features of email relay services

• Focuses on automatically sent emails linked to systems, such as confirmation emails upon member registration, purchase completion notifications, password resets, and alert notifications

• It is common to connect via SMTP or API, and they often have robust features for improving email deliverability

• There is no GUI operation; it is intended for engineers to integrate into systems and use.

Differences between email delivery systems and email relay services

While email relay services are a type of email delivery system, their intended use and users differ significantly, so you should choose a service that matches your specific goals.

Reference: 13 Recommended Email Relay Services! A Thorough Explanation of Comparison Points, How to Choose, and Pros/Cons

Differences between email delivery systems and "MA tools"

When considering the introduction of an email delivery system, MA (Marketing Automation) tools may also come up as separate candidates.

Here, we will explain the differences between email delivery systems and MA tools.

Overview and basic functions of MA tools

MA (Marketing Automation) tools are tools designed to automate and streamline marketing activities.

MA tools include the following functions:

• Centralized customer information management: Allows for the collective management of customer behavior history, purchase history, etc.

• Email delivery function: Can automatically send personalized emails tailored to customer interests and concerns.

• Web page creation function: Allows for the easy creation of landing pages, forms, etc.

• Access analysis function: Can analyze the number of website visitors, time spent on site, etc.

• Scoring function: Allows for quantifying customer lead potential to prioritize them.

Regarding the email delivery function, it is possible to send emails at the appropriate timing according to the customer's purchasing process.

For example, you can send thank-you emails or introductions to related content after a document download, or appointment confirmations and preparation guides before a business meeting.

The benefit of this is that it strengthens relationships with customers and makes it easier to create business opportunities.

Which one should be used for email delivery?

Email delivery is one of the essential means for marketing and sales promotion activities.

To do this effectively, it is important to choose the right tool.

While email delivery systems and MA tools are both candidates for email delivery tools, what are their respective features and differences?

Email delivery systems have features such as being rich in email marketing-related functions and easy to use, and being able to send large volumes of emails quickly and being relatively inexpensive and easy to implement.

On the other hand, many MA tools are highly functional and can be used for various marketing initiatives.

However, because they are highly functional, they cost more than email delivery systems, require various preparations for implementation, and have the challenge of being difficult to operate and manage after implementation.

Also, they are not very rich in features specialized for email marketing.

Therefore, if you want to send a large volume of emails simply and inexpensively, such as for newsletters or campaign announcements, an email delivery system is recommended.

If you want to perform detailed segmentation and targeting based on lead attributes and behavioral history, or if you want to manage overall marketing by linking with web customer service tools or CRM, you should choose an MA tool.

Differences between email delivery systems and mailing lists

There is something called a "mailing list" that is similar to an email delivery system (email delivery service).

They are often confused because they are used with similar meanings in a broad sense, but it is worth remembering the differences.

It can be seen that mailing lists are suitable for internal communication and information sharing, while email delivery systems are suitable for marketing and public relations activities.

Reference article: What is a mailing list? A detailed explanation of the differences from broadcast emails, pros and cons, and recommended tools

Differences between email delivery and SNS

Email delivery and SNS are both widely used for information transmission as communication tools, but there are major differences in their purposes and usage methods.

Email delivery is only for people who have already acquired an email address, but SNS can share and spread information even to people who are not connected to you.

Purposes and benefits of email delivery

The purpose of email delivery is to deliver information directly to the recipient.

By delivering personalized newsletters based on customer data, you can deepen relationships with customers and perform nurturing (customer development).

In addition, it can be used to achieve short-term results, such as promotions, event announcements, and the delivery of limited offers.

Purpose and Benefits of SNS

On the other hand, the purpose of SNS is to spread information.

On X (formerly Twitter), which has a large number of users in Japan, there is a repost (retweet) function that allows your followers to spread your content, enabling people who have no connection to your company to see your posts.

In addition, since it allows for easier communication than email, another benefit is that it is easier to improve engagement.

Proper Use of Email Delivery and SNS

Since email delivery and SNS have different purposes, benefits, and strengths, you can increase the results of your email delivery by using them effectively.

For example, suppose you grow your SNS account and gather 1,000 followers.

Since it is considered that the majority of those 1,000 people are already fans of your company, by delivering nurturing (customer development) and promotional content, which are also strengths of email delivery, you can expect various effects such as an increase in prospective customers and an increase in sales triggered by email.

Points to Note and Etiquette When Sending Bulk Emails

Because email delivery and bulk email sending are functions frequently used in business, you need to know the etiquette and risks when using them. Here, we will introduce the minimum etiquette you should know when performing bulk delivery using an email delivery system.

Do not make mistakes in address settings

Bulk emails are sent by setting the recipient's email address in either "TO", "CC", or "BCC".

• TO/CC: All recipients can see the addresses

• BCC: Addresses cannot be seen by other recipients

The characteristics of each address setting from the recipient's perspective are as described above. Also, keep in mind that from the sender's perspective, address settings have the following implications.
Also, keep in mind that from the sender's perspective, address settings have the following implications.

• TO: Key people who you want to check the content, and who should also send replies to TO

• CC: People who you want to be aware of the content

• BCC: People whose addresses you do not want other recipients to see

If you set them incorrectly, it may become unclear who is responsible for responding, leading to the risk of delayed replies or the leakage of email addresses.

In particular, those who are sending bulk emails for the purpose of attracting customers need to be careful because they sometimes handle a large number of addresses at once. Email address leaks due to incorrect address settings occur every year, and it is known that most of them are emails sent in bulk from environments where addresses are set manually.

The following article summarizes in detail the points to note when setting recipients for mass email distribution. Please be sure to read it along with this article.

Related article: Pro Tips! Why BCC is Not Recommended for Mass Email Distribution and How to Use BCC Correctly!

How to Write Recipient Names

It is also good manners to write the recipient's name when sending business emails.

Basically, write them in the order of "Company Name, Job Title, Name". Be careful, as there are many cases where company names are misspelled.

• Raksulightcloud Inc.

• Raksulightcloud (Inc.)

• Raksulightcloud Co., Ltd.

In the example, (Inc.) is written in half-width characters, but full-width characters may also be used.

Also, avoid abbreviating "Inc." to (Inc.) on your own, as it makes for a very rude recipient name. In the case of mass distribution, list the names of those set in the TO field, but if there are too many, it is easier to read if you summarize them using terms like "Kaku-i" (To all concerned) as shown below.

• To all recipients

• To all members of the XX Project

• To all members of the XX Department

When including external parties in the recipient list for joint projects, etc., list them in descending order starting with the client company, and within that, list those with higher job titles first.

XX Co., Ltd. Sales Department Manager Mr./Ms. - Sales Department Mr./Ms. -

YY Co., Ltd. Public Relations Department Project Manager Mr./Ms. - Public Relations Department Mr./Ms. -

In the case of mass emails with more than 5 recipients, use the aforementioned "Kaku-i" to make it easier to read.

By the way, since the word "Kaku-i" already includes an honorific meaning, writing "Dear Customers" (Okyakusama Kaku-i) would be redundant. When using Kaku-i for "customers," the correct usage is something like "To all clients."

The following article explains in detail how to write recipient names. Please refer to this as well.

Related article: How do you send emails to multiple people? Introducing how to write recipient names and etiquette with examples!

Thoroughly double-check to prevent incorrect recipient settings

As mentioned earlier, the leakage of email addresses due to incorrect recipient settings is a matter of corporate credibility and must be prevented at all costs. In recent years, interest in personal information has grown, and there are many examples of companies paying damages for leaking customer addresses.

Reference article: Frequent mass email misdirection due to the COVID-19 crisis! What are effective preventive measures against misdirection?

Incorrect address settings can be largely prevented by using the email delivery systems introduced here, so email delivery systems are also recommended for those who want to reduce such risks.
Companies that frequently send mass emails should consider implementing one for their own risk management.

Download the email delivery system comparison table>

Points to note when introducing an email delivery system

Here are three points to keep in mind when introducing an email delivery system.

Comply with the Act on Regulation of Transmission of Specified Electronic Mail

The "Act on Regulation of Transmission of Specified Electronic Mail" is a law aimed at preventing spam and applies to commercial emails. The following rules are mainly stipulated:

• Opt-in principle: Recipient consent is required for email delivery. Sending to those who have not consented is prohibited.

• Clear sender information: The sender's name, address, and contact information must be clearly stated in the email.

• Unsubscribe guidance: Emails must include a link or method for recipients to easily unsubscribe.

If a violation is discovered, a fine of up to 1 million yen may be imposed.

Reference article: What is the "Act on Regulation of Transmission of Specified Electronic Mail"? Understand the points to avoid illegality!

Comply with the sender guidelines of major mailers such as Gmail

In February 2024, Gmail's sender guidelines were updated, and various requirements were added for senders, such as setting up SPF records or DKIM signatures for their domains and using TLS connections when sending.

If you are not compliant, delivery errors may occur, so be sure to check if the system you are introducing complies with Gmail's sender guidelines.

Reference article: [Solution] Gmail guidelines changed from February 2024! Compliance is mandatory for sending 5,000 or more emails per day! Is it dangerous to do it without knowing? Risks of mass emailing and how to avoid them are also explained!

Pitfalls often overlooked when introducing an email delivery system

If you do not perform sufficient checks in advance when introducing an email delivery system, you may face unexpected problems. Here, we will explain the "pitfalls" that are easy to overlook when choosing an email delivery system and how to avoid them.

Overlooking low delivery rates

Systems with low delivery rates have a high probability of having emails treated as spam, which leads to a decrease in open rates.

Since the purpose of introducing an email delivery system is often based on the premise of delivering a large volume of emails quickly and reliably, there are likely very few people who do not need this feature.

How to verify delivery rates

Unlike delivery speed, many systems do not publish their delivery rates. This is because they fluctuate depending on the nature of the customer's email addresses, making it difficult to guarantee them.

In fact, there are some email delivery systems that claim to have "high delivery rates" but hardly deliver any emails at all.

You should indirectly check the delivery rate using the following methods.

How to estimate delivery rates

• Look at track records such as the number of customer implementations and market share

• Judge that fast delivery speed equals having a high-performance delivery server, which also means a high delivery rate

• Try actually sending emails in a trial environment

• Check reviews on comparison sites and similar platforms

In particular, estimating from delivery speed is recommended. In fact, most systems that market themselves on high-speed delivery also tend to have high delivery rates.

Overlooking the pricing structure

Email delivery systems have pricing structures such as "fixed monthly fees," "pay-as-you-go," and "one-time purchase."

If you do not choose appropriately, you may incur higher costs than expected.

Make sure to understand your own delivery volume in advance.

Overlooking poor usability

If the management screen is difficult to understand or complex, operations will take time. It also increases the risk of accidental delivery.

Make use of free trials or demo versions to check the actual operational feel. If you are operating as a team, do not forget to test whether multiple staff members can use it smoothly.

Lack of support system

If you cannot receive appropriate support when system troubles or questions arise, it will hinder your business operations. Especially when sending large volumes of emails, a quick response is required.

Check the availability of support (phone, email, chat, etc.) and the support hours (24-hour support or limited to weekdays).

It is also a good idea to check whether overseas systems provide Japanese language support.

It is even better to verify whether the FAQ and manuals are comprehensive during the trial period.

Lack or excess of necessary functions

If you do not choose a system that matches your purpose, you may find that necessary functions are missing, or conversely, that there are too many unnecessary functions, making it difficult to use.

Overlooking security risks

Since email lists contain customer personal information, choosing a system without appropriate security measures increases the risk of information leaks and unauthorized access.

Be sure to check whether security is mentioned on the product website or in the materials.

Reference article: How to choose an email delivery system! A thorough explanation from procedures to pitfalls often overlooked

Return to the ranking and comparison table of recommended email delivery systems >

Case studies of email delivery system implementation

Here, we will specifically introduce actual usage scenarios for email delivery systems. If you are considering implementation, please compare them with your company's situation.

DeNA Case Study

DeNA, which sometimes sends newsletters on a scale of 1 million at a time twice a day, faced the challenge of 'high operational costs for creating and sending newsletters'.

In addition, they have reduced the cost of creating newsletters by using the HTML email editor.

Among these, the tag insertion function of the HTML email editor is particularly well-received.

By utilizing this feature, it has become possible to create content without compromising the visuals of the template HTML emails.

Companies that send emails to customers, as well as those that distribute HTML-based newsletters, will likely be able to reduce operational costs by using this approach.

Reference Article: Case Study: DeNA

Case Study: ALC Press Inc.

ALC Press Inc., which develops a wide range of businesses centered on language education, uses Blastmail to promote products and deliver updates from their own media.

Also, the simple operation screen was well-received.

As shown, even companies currently using email delivery services can expect to reduce costs and improve results by re-evaluating their services.

In such cases, be sure to check not only the price but also whether 'support is comprehensive during implementation' and 'migration work can be performed smoothly'.

Reference Article: Case Study: ALC Press Inc.

Blastmail offers comprehensive support as well as a free trial, so you can actually try out the operability for yourself. Please give it a try.

Case Study: Marui Orimono Co., Ltd.

Challenges before implementation: We were delivering on a small scale with another company's system, but the effects were limited. When we performed large-scale delivery with the other system, costs became too high. Reason for implementation: The balance between large-scale delivery and cost was excellent. Results of implementation: Achieved results where the open rate exceeded 30% at its peak. Repeat purchase rate increased. Effects of dedicated support: Efficient delivery became possible. Open rate improved by approximately 2% through editing and analysis.

Marui Orimono Co., Ltd., which provides services such as 'UP-T' for original goods production using a digital print factory, saw a significant increase in repeat purchases after introducing Blastmail.

In addition, Marui Orimono Co., Ltd. also uses our dedicated support service.

As you can see, if you introduce an email delivery system, even beginners can perform high-quality, large-scale newsletter distribution. In that case, it is best to choose a system based on criteria such as 'comprehensive templates' and 'thorough support'.

Reference Article: Case Study: Marui Orimono Co., Ltd.

* You can view all case studies here.

[2026 Edition] Latest Trends in the Email Delivery Market

According to Email Marketing Market Growth and Forecasts, the U.S. email marketing market continues to grow and is projected to expand at a compound annual growth rate (CAGR) of 5.9% from 2025 to 2032. In other words, even in 2026, the email delivery market can be said to be growing steadily.

Factors Driving Growth

• Emphasis on Personalization: Marketers are focusing on "segmentation of email recipients," "message creation," and "context-aware delivery."

• Technological Evolution: The introduction of AI, machine learning, and automation technology enables more effective campaigns.

• Importance of Data Analysis: Enables more detailed customer behavior analysis and ROI measurement.

Furthermore, while marketing measures such as social media are diffusion-oriented and lack the ability to build long-term relationships, email marketing is being re-evaluated for its ability to build long-term relationships with customers.

Market Size and Growth Rate

The SaaS-based email delivery system market in Japan was 84.27 billion yen in 2023 and is projected to reach 116.67 billion yen by 2025.

Reference article: https://boxil.jp/mag/a8613/

The global market is expected to grow at a compound annual growth rate of 12.11% from 2024 to 2029, reaching 20.35 billion dollars by 2029.

Reference article: https://www.mordorintelligence.com/ja/industry-reports/email-marketing-market

Top Runners in the Email Delivery System Market

When introducing an email delivery system, some people may be concerned about the market share of customer adoption because they want to use a service they can trust.

In fact, the system with the number one customer base in the email marketing tool market has not changed for 14 years.

If you are doing email marketing, use blastmail

Blastmail is a highly reliable email delivery system that has held the number one customer adoption share for 15 consecutive years. It is used by various industries and government agencies and is widely known as a standard email delivery system.

It has all the basic functions necessary for email marketing, including an HTML email editor, segment delivery, a wealth of templates, and spam filter countermeasures. You can introduce it for 4,000 yen per month with the cheapest plan.

Also, its high delivery speed and extremely high arrival rate are also attractive.

Blastmail is recommended for those who think, "I want to start email marketing for now," "I can't master it even if there are many features," or "I want to reduce the man-hours spent on email marketing."

A free trial is also available, so we recommend trying it out first.

Go to details of "Blastmail" >

Future Outlook

The following three points should be kept in mind for the future outlook.

• How to master AI

• Selection of automation tools (how far to automate)

• Adapting to customer needs

How to master AI

It goes without saying that the utilization of AI technology is currently driving the growth of the email delivery market.

In the future, whether you can perform efficient email delivery operations by making good use of generative AI is highly likely to be the key to business success.

Reference article: [Definitive Edition] Efficient Email Delivery with ChatGPT x Newsletter! Explained with Actual Screens!

Selection of automation tools (how far to automate)

Also, as the trend of marketing automation such as MA/SFA accelerates, the demand for email marketing is expected to remain high.

When introducing MA, make sure to check before implementation whether the system is cost-effective.

Adapting to customer needs

Furthermore, as the demand for personalized target marketing is increasing, it will become necessary to send emails that are more tailored to the needs of each individual customer. The success or failure of email marketing will depend on how efficiently you can implement marketing measures without spending time, while making good use of the two points mentioned above.

The email delivery market is expected to continue to grow sustainably due to the increasing importance of digital marketing and technological innovation.

FAQ (Frequently Asked Questions) about Email Delivery Systems

We have summarized the "frequently asked questions" we receive from everyone when selecting an email delivery system.

Please use this as a reference along with the rankings provided so far.

What is the difference between free and paid systems?

Many free email delivery systems include advertisements in the body of the emails you send.

Also, many of them cannot send HTML emails, even if they can send text emails.

Regarding delivery rates, free systems tend to be lower compared to paid email delivery systems that perform maintenance on their delivery environments.

Related article: Should you choose a free or paid bulk email delivery service? A thorough comparison.

Can I master an email delivery system even if I am not used to computers?

There are systems that are easy for beginners to understand and offer intuitive operation, so even those who are not used to operating computers can use them.

Systems that focus on email marketing or marketing automation have many features, so they may feel complicated for beginners.

What is the difference between an email delivery system and sending bulk emails via BCC?

Sending bulk emails via BCC carries the risk of email address information leaks due to operational errors.

During the COVID-19 emergency declaration, when the demand for bulk emailing increased, there were a series of erroneous transmissions using BCC.

Related article: Frequent erroneous bulk email transmissions due to the COVID-19 crisis! What are effective measures to prevent erroneous transmissions?

Also, if you are using the email function of a rental server, there is a limit to the number of emails that can be sent per hour, so you may not be able to send large volumes.

For example, the rental server "xbit" provided by our company limits sending to 500 emails per hour."xbit" limits sending to 500 emails per hour.

What is the difference between text emails and HTML emails?

Text emails, as the name suggests, refer to emails composed only of text characters. On the other hand, HTML emails are image-based emails that use HTML/CSS for the email background and body.

Compared to text emails, HTML emails are characterized by being easier to read, easier to click, and allowing for effectiveness measurement.

Related article: Is sending text-only email newsletters outdated? 3 reasons why you should definitely use HTML emails.

Are there any things to be careful about when sending emails?

We recommend that you remember to comply with the Act on Regulation of Transmission of Specified Electronic Mail. (Opt-in/Opt-out)

Related article: What is the "Act on Regulation of Transmission of Specified Electronic Mail"? Understand the points to avoid being illegal!

If I use an email delivery system, will my emails stop going to the spam folder?

Spam filtering criteria are becoming stricter every year. These criteria vary by carrier and provider, making it difficult for the sender to control.

It is impossible for any system to guarantee that emails will never go to the spam folder. However, by using an email delivery system, you can benefit from "delivery environment optimization," which significantly helps in reducing spam classification.

Related article: What are the security measures for email delivery systems? A thorough explanation of risks and countermeasures

Can I comply with Gmail sender guidelines if I use an email delivery system?

Please be aware that some email delivery systems do not comply with Gmail sender guidelines.

Free delivery systems often do not comply with Gmail sender guidelines.

Check the official website or download product materials to confirm if they comply with the guidelines.

What is an SPF record?

An SPF record is a type of sender domain authentication mechanism. By writing the delivery server information into the DNS record that contains your domain information, you can prove that the email is being sent from a legitimate source.

The details of SPF records are explained in the article below, so please refer to it.

Related article: [Illustrated] What is an SPF record?? Explaining the mechanism of SPF records in a way that is easy for beginners to understand

What is a DKIM signature?

DKIM (DomainKeys Identified Mail) is a sender domain authentication technology using an electronic signature method that proves an email was sent from the correct issuing mail server and has not been tampered with. Setting it up increases the credibility of sent emails and has the advantage of making them less likely to be treated as spam by the recipient.

The details of DKIM signatures are explained in the article below, so please refer to it.

Related article: [With illustrations] Explaining the role of DKIM in 3 minutes!! Understand the mechanism of DKIM, a domain transmission technology

What is DMARC?

DMARC (Domain-based Message Authentication, Reporting and Conformance) is a security technology used to prevent sender spoofing and tampering with email content.

For details on DMARC, please refer to the article below for a thorough explanation.

Related Article: The Key to Email Security! Basic Knowledge About "DMARC"

What is the difference between a mailer and an email delivery system?

A mailer is a tool specialized for one-on-one communication and is not suitable for mass mailing.

Email delivery systems are designed for mass mailing and are tuned for optimal delivery, such as high deliverability and fast transmission speeds.

Related Article: How many people can you send mass emails to with Gmail? Be careful if you handle large volumes of email with Gmail!

When is it effective to implement an email delivery system?

We recommend considering an email delivery system for those who have the following needs:

• "I want to create highly engaging HTML emails"

• "I want to manage customer information linked to email addresses"

• "I want to automate email delivery"

• "I want to improve the effectiveness of my emails"

What is the deliverability rate of an email delivery system?

The deliverability rate refers to the percentage of sent emails that reached the recipient's mail server without resulting in an error.

Also, the benchmark for email newsletter deliverability is said to be 90%.

Related Article: How can you increase email deliverability? Here are 5 easy-to-understand measures to improve your rate!

Recommended Email Delivery Systems by Purpose

We have introduced various email delivery systems so far, but it can be very difficult to determine which system is right for your company.

Consider factors such as feature characteristics, pricing, ease of use, and support to find the service that best suits your company.

• For beginners prioritizing essential features and price: Blastmail

• If you need a high-performance system with comprehensive support:Haihai Mail

• If you need top-class features even at a high cost:EmberPoint

• If you are okay with an overseas service that uses English notation:MailChimp

Also, to avoid regrets after implementation, be sure to try out free trials and check product materials and case studies.

Download the Email Delivery System Comparison Table >

Email Delivery System Selection Guide

Since there is so much information, some people may not know which one to actually choose.

Therefore, we have created an email delivery system selection guidebook.

Guidebook Contents

• What is an email delivery system?

• What criteria should you use to choose an email delivery system?

• Where email delivery systems differ

And more; just by reading this guidebook, you will know at a glance which email delivery system you should choose.

Taught by email delivery pros! "How to Choose an Email Delivery System" Guidebook. Email Delivery System Selection Guidebook. Free gift of a useful guidebook! Email delivery pros explain "How to Choose an Email Delivery System"...

Summary

We have introduced 25 recommended email delivery systems above.

Trying to handle email delivery operations on your own can be extremely time-consuming, involving measures against spam, sorting recipients, and changing names one by one.

Please try to streamline your email operations by introducing the optimal email delivery system for your company while comparing features, costs, and services.

Also, we explain the basic description and how to choose an email delivery system in the video below, so please be sure to check it out.

Request for information exchange regarding email newsletters

Thank you for reading this article all the way through.
As a sales representative for email marketing tools, I am eager to gather as much information as possible regarding know-how, case studies, and common challenges related to email newsletters.

So, why don't we talk directly?

Whether it's about your concerns regarding email, recent successful strategies, or even a sales pitch, I'm open to it.
I want to help spread email marketing through beneficial information exchange.

I am just an ordinary marketer, so let's exchange information from our real-world experiences.

Schedule an appointment here >>
*This is an online meeting with me.

Free trial available

If you want to start email marketing but don't know where to begin.

For those people, please try it out first.

The Blastmail support team will be happy to consult with you.

Sales partners wanted

For those handling client work, email delivery agency projects, or affiliates, Blastmail offers a sales partner program with a recurring revenue model.
If you are interested, please feel free to apply. (Registration is free)