Leaving the Option of "Co-existing with the Cloud" for Important Business Communications in Japan

Our company endorses April Dream, which aims to make April 1st a day to share dreams. This press release is the dream of 'E-Post Inc.'

E-Post Inc. (Headquarters: Shinjuku-ku, Tokyo; Representative: Kazuya Imanishi; Abbreviation: E-Post) aims to create a society by 2040 where the option of "co-existing with the cloud" naturally remains for important business communications in Japan.

And another dream is to not let email end as an "old tool," but to nurture it into one of the "next regional communication infrastructures."

Our company was established in July 2000. For over 20 years, we have supported business communications for local governments and corporations through products such as E-Post Mail Server, E-Post SMTP Server, E-Post Secure Handler, and E-Post LGWAN Option.

Local governments, corporations, educational institutions, medical and welfare sites, and local communities. In these "sites where operations must not stop," we believe that not only convenience but also continuity and secure management are important. As one of the foundations for this, we want to re-examine email.
Email still has the advantage of being a foundation for business communication: it can connect with many people, records remain, and it is easy to use across organizations.

On the other hand, in recent years, with the spread of convenient cloud services, there have been gradually increasing situations where it is difficult to have other options. We feel it is important to consider multiple forms of communication infrastructure in preparation for failures, communication outages, or specification changes.

We want to preserve "options," not just nostalgia

Cloud services have the great advantage of being quick to start using and easy to access from anywhere.

However, for important business communications, there are also situations where an infrastructure managed by one's own organization is more suitable.

For example:

• Want to decide operational policies based on the organization's judgment

• Want to use within a closed network or with unique rules

• Want to maintain communication infrastructure even during external failures

• Want to maintain records and control independently over a long period

• Want the IT department to manage it as part of their responsibility

For such sites, we want to preserve the option of an in-house communication infrastructure for the future.

Our flagship product, E-Post Mail Server, is a domestic mail server for Japan based on on-premise operation, and as of March 2026, it has been adopted by over 4,000 units nationwide and approximately 300 ministries, local governments, and general companies. We aim to quietly continue to support options that tend to be lost through this progress.

We want to nurture email as one of the "next regional communication infrastructures"

We believe that email should not end as merely an old communication method, but should be nurtured as one of the foundations that will support future business and regional communication.

This is not just about sending and receiving.

• Reliably deliver necessary information to necessary recipients.

• Track who sent what and when.

• Can be used for communication outside the organization.

• Can be continued smoothly while utilizing existing operations and assets.

• And, can be treated by IT departments as a "foundation to protect."

We believe that email, with these characteristics, is a system that should be re-evaluated in the future.

In the future, starting with E-Post Mail Server, we envision a world where we can smoothly expand to notifications, light chat-like interactions, information sharing, log preservation, and closed-network operations by combining E-Post SMTP Server, E-Post Secure Handler, and E-Post LGWAN Option. The idea is not "email or something else," but "expanding necessary collaborations starting from email."

We believe that this extension also holds the potential for mechanisms that support information in smaller, more localized settings. We are currently conducting concrete verification and prototyping for such approaches.

Towards a society where IT departments can have a "foundation worth protecting"

As business systems increase and demands from the field diversify, the role of IT departments is growing ever larger. However, they are often busy with daily tasks, making it difficult to allocate sufficient time for building infrastructure. We want email infrastructure to be a "foundation worth protecting" that supports the continuity and reliability of organizations.

Furthermore, the ease with which organizations can grasp the location and management authority of important business data and communication logs will become increasingly important from the perspective of so-called data sovereignty.

• Easy to introduce.

• Sustainable operation.

• Easy to grasp the situation during troubles.

• Necessary control and management remain in their hands.

• Easy to grasp the location and management authority of important business data and communication logs.

Therefore, through our product lineup including E-Post Mail Server, E-Post SMTP Server, E-Post Secure Handler, and E-Post LGWAN Option, we have prepared a system that makes it easy to choose a suitable configuration for each site.

The Future E-Post Aims For

E-Post Inc.'s dream is to continue to preserve the option of "co-existing with the cloud" for important business communications in Japan.

And another dream is to not let email end as an "old tool," but to nurture it into one of the "next regional communication infrastructures."

Not just convenience, but also continuity.
Not just speed, but also manageability.
Not just up-to-dateness, but also continuity and fault tolerance.

We believe that communication infrastructures with such value will continue to be quietly needed in Japan.

Leveraging our expertise cultivated over 20 years in email infrastructure, we will first prioritize providing practical benefits to local governments, corporations, and IT departments, and then work towards more localized communication methods.

The "Ark Project" to connect preparedness

As one such initiative, our company is advancing the conception and verification of a palm-sized, autonomous, regional disaster prevention communication system, with a view to securing communication in evacuation shelters.

During large-scale disasters, regions can be cut off from information due to base station outages. While satellite internet services are effective for external communication, we believe that other measures are necessary for detailed information sharing within evacuation shelters and for supporting immediate operations.

Our envisioned E-Post TinyBox (tentative name) is an autonomous server that can operate even without internet access. Even if the external network is cut off, it can continue encrypted email and chat communication within a local network, aiming to act as a coordinator to support smooth operations while suppressing information discrepancies within the "closed society" of an evacuation shelter. By linking multiple units, we envision softly expanding the communication area even in large evacuation shelters or buildings with many obstacles. Furthermore, starting from E-Post's email infrastructure, we envision a system that can gradually expand to more intuitive chat formats as needed.

Potential applications include information sharing through bulletin board functions in evacuation shelter management, privacy-conscious staff communication in rescue and medical sites, and daily/emergency communication in places with inherently limited communication environments, such as construction sites and mountainous areas.

As an April 1st dream.
And as an option that will truly be needed by society someday.
E-Post Inc. will continue to consider the future of business communication in Japan in a grounded manner.

Company Profile

Company Name: E-Post Inc.

Head Office Location: Sunflower Building, 1-33-14 Takadanobaba, Shinjuku-ku, Tokyo 169-0075

Representative Director: Kazuya Imanishi

Established: July 19, 2000

HP:https://www.e-postinc.jp

Email:info@e-postinc.jp

TEL:03-5272-5386

FAX:03-6856-9729

Contact Person: Public Relations, Ryutaro Tanaka

Notes

This release endorses April Dream and expresses our company's dream. It does not represent only the products and services currently offered, but also includes concepts that we aim to realize in the future.

"April Dream" is a project by PR TIMES where companies announce dreams they wish to achieve on April 1st. We are seriously committed to realizing this dream.