Announcement of the Launch of "TERRACE MAIL Security" Software Version

Daou Japan Co., Ltd. has launched the software version of its email security product "TERRACE MAIL Security." This allows for operation on cloud platforms in addition to traditional on-premise environments, meeting the growing demand for email server cloud migration.
新製品NQ 84/100出典:PR Times

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  • 📰 Published: April 15, 2026 at 17:30
  • 🔍 Collected: April 15, 2026 at 09:01
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Since its establishment in 2008, Daou Japan Co., Ltd. has consistently planned, developed, and sold self-developed email security products.

As a specialized manufacturer supporting the email infrastructure of domestic companies and local governments, we comprehensively provide advanced threat countermeasures and outbound security functions tailored to practical operations.

Until now, "TERRACE MAIL Security" has been provided as an appliance version, and has been introduced and operated in on-premise environments by many companies and local governments.

In response to the recent expansion of demand for email server cloud migration, this product will now offer a new form that can be installed and operated as a software version on cloud platforms, in addition to the conventional on-premise operation.

This enables consistent security measures on the same platform even when migrating email servers to the cloud.

## Main Features

■ Advanced Inbound Email Protection

- Blocking spam/virus/phishing emails
- 4-stage multi-level dedicated filters
- Provision of 5 live update rules
- Diverse arbitrary filter settings possible
- Achieves highly accurate detection through multi-layered defense.

■ Targeted Attack Countermeasures and Email Sanitization Function

- Blocking targeted attacks through sender history inspection
- Attachment extension spoofing inspection
- Attachment deletion, HTML email text conversion processing
- Dual delivery of original and sanitized emails
- Provides highly effective countermeasures against targeted attacks.

■ Support for Authentication Technologies

- DKIM support
- DMARC support
- Strengthens spoofing email countermeasures and sending domain authentication.

■ Email Filtering and Information Leakage Prevention

- Diverse approval policy settings
- My Number detection filter function
- Reduces the risk of confidential information leakage to the outside.

■ Outbound Security Functions

1. Supervisor Approval Function

- Diverse approval policy settings
- Policy settings based on organizational chart
- Control by department/group unit
- Strengthens prevention of misdelivery and internal control.

2. Temporary Retention of Outbound Emails

- Retention settings based on arbitrary filter conditions
- Control by department/group unit
- Ensures confirmation time after sending and suppresses human error.

3. Outbound Email Encryption

- Encryption policy settings according to conditions
- ZIP encryption for attachments only
- Link sending of attachments
- Link encryption sending of entire emails
- Flexible encryption methods can be selected according to the usage environment.

## Sales Format and Price

This product will be sold on a user license basis.
Prices vary depending on the scale of introduction and configuration, so please contact us separately for details.

## Future Developments

Based on the self-developed technology cultivated since its establishment, Daou Japan Co., Ltd. will continue to provide email security solutions optimized for both on-premise and cloud environments, supporting a secure information communication environment for companies and local governments.

## Company Profile

Company Name: Daou Japan Co., Ltd.
Representative Directors: Sung-Wook Kim, Hyun-Seok Shim
Location: Nomura Real Estate Shiba Daimon 6F, 1-9-9 Shiba Daimon, Minato-ku, Tokyo 105-0012
Date of Establishment: April 2, 2008
Business Activities: TERRACE MAIL Security, Giftto, Booster, etc.
Corporate Website: https://daou.co.jp/

## Contact Information

Daou Japan Co., Ltd.
TEL: 03-6435-6200
Email: j-support@daou.co.jp
Inquiry Form: https://daou.

FAQ

What is the 'TERRACE MAIL Security' software version?

It is a mail security product that can be installed and operated not only on traditional on-premises infrastructure but also on cloud platforms.

What are the benefits for companies considering cloud migration?

They can achieve consistent security measures on the same platform even when migrating their mail servers to the cloud.

What security features are available?

Features include advanced inbound email protection, targeted attack defense, authentication technology support, data leakage prevention, and sending security functions.