IIJ Adds New Feature to IIJ Secure MX Service

TOKYO, March 31, 2009 (GLOBE NEWSWIRE) -- Internet Initiative Japan Inc. (IIJ)
(Nasdaq:IIJI) (TSE1:3774), one of Japan's leading Internet access and
comprehensive network solutions providers, today announced it will add the new
GDX Mail Option to the integrated corporate mail security functions of the IIJ
Secure MX Service.

The GDX Mail Option enables customers to send and receive e-mail using the GDX
Trusted Platform, a messaging network for businesses provided by GDX Japan Inc.,
an IIJ Group company. The GDX Trusted Platform is a dedicated private network
that ensures the deliverability, traceability, and authenticity of e-mail
through a special protocol that supplants the conventional SMTP protocol and
provides a safe and secure B2B messaging environment.

Below is a list of feature highlights.

1. Ensuring the deliverability of e-mail
The deliverability of e-mail between GDX Mail Option users is
ensured. E-mail messages are securely and confidently delivered to
their destination, which ensures that orders, transactions, and
other important business messages do not go missing.

2. Providing a delivery tracking function
From the administrator's Web interface, the delivery status of
messages can be confirmed. The delivery status can be checked
visually via the web-based graphical interface, making the
tracking of e-mail messages much easier than in the day of the
e-mail delivery log.

3. Ensuring reliability through time authentication
Seiko Precision Inc.'s network-based time authentication service
provides a time stamp that complies with the e-Document Law,
enabling customers to verify the exact date and time that an
e-mail was sent.

4. Searchable transmission log
Customers can search a transmission log by date sent, sender,
recipient, subject or the message delivery status and download
through an online interface for system administrators.
In addition to the GDX Mail Option, IIJ is releasing a free API called the
Account Management API Option, which provides functions for white list
management. Customers send account information from their own systems to the
API, and white list management is performed automatically, making system
administration even more efficient when using the IIJ Secure MX Service.

The IIJ Group will continue to expand its services to achieve a secure messaging
environment for companies.

About GDX Japan

GDX Japan Inc. was established in April 2007 with Internet Initiative Japan Inc.
and GDX Network, Inc., a 100% owned subsidiary of U.S.-based MX Logic, Inc. IIJ
has cultivated highly reliable technologies for e-mail service operations and
network operations, and combined with the latest messaging technology from MX
Logic, Inc., GDX Japan Inc. will create a new-generation messaging environment.
For more information about GDX Japan Inc. and GDX Network, Inc., visit the GDX
Web site at http://www.gdx.com/.

About IIJ

Founded in 1992, Internet Initiative Japan Inc. (IIJ) (Nasdaq:IIJI) (Tokyo Stock
Exchange TSE1:3774) is one of Japan's leading Internet-access and comprehensive
network solutions providers. IIJ and its group of companies provide total
network solutions that mainly cater to high-end corporate customers. The
company's services include high-quality systems integration and security
services, Internet access, hosting/housing, and content design. Moreover, the
company has built one of the largest Internet backbone networks in Japan, and
between Japan and the United States. IIJ was listed on NASDAQ in 1999 and on the
First Section of the Tokyo Stock Exchange in 2006. For more information about
IIJ, visit the IIJ Web site at http://www.iij.ad.jp/en/.

The Internet Initiative Japan Inc. logo is available at
http://www.globenewswire.com/newsroom/prs/?pkgid=4613

The statements within this release contain forward-looking statements about our
future plans that involve risk and uncertainty. These statements may differ
materially from actual future events or results. Readers are referred to the
documents furnished by Internet Initiative Japan Inc. with the SEC, specifically
the most recent reports on Forms 20-F and 6-K, which identify important risk
factors that could cause actual results to differ from those contained in the
forward-looking statements.

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CONTACT: Internet Initiative Japan Inc.
IIJ Corporate Communications
+81-3-5259-6310
press@iij.ad.jp
http://www.iij.ad.jp/en/