IIJ Adds Online Storage Integration Feature to IIJ Secure MX Service.

New Feature Prevents Information Leaks from Misaddressed Email Attachments and Provides an Environment for Secure File Exchanges

TOKYO -- Internet Initiative Japan Inc. ("IIJ", NASDAQ: IIJI, TSE Mothers: 3774), one of Japan's leading Internet access and comprehensive network solutions providers, today announced the addition of an Online Storage Integration Feature to its IIJ Secure MX Service, which is an ASP service that provides email security functions such as anti-spam measures and email archiving. The new feature will be released on November 1, 2006.

The feature will increase email security using secure online storage to protect email attachments from being read or altered by unauthorized people. It is also extremely easy to use. Users only need attach a file to a message for it to be automatically uploaded to the online storage system. This new feature was implemented by integrating the IIJ Secure MX Service with the IIJ Document Exchange Service, an online storage service for corporate customers.

The feature works by detecting email attachments on both outgoing and incoming messages and automatically stripping attachments from messages, uploading them to the online storage system, and inserting into the body of the message a one-time URL that points to the file. The message is then delivered as usual, and the recipient can download the file by clicking on the URL. The file is protected through access authentication and control as well as encryption, providing a more secure file exchange environment. An added benefit is that large attachments will not burden the email server or unnecessarily fill up incoming mailboxes.

Major Benefits

Misaddressed email does not result in data leak

In the event that a message is sent to the wrong address, the attachment is kept safely on a storage server. Using access authentication on the one-time URL prevents these files from being accessed by anyone but the intended recipient.

Encryption makes for secure file exchange

In addition to the access controls for each user, each file exchange is executed using the SSL encryption scheme. A record of all file uploads and downloads is kept in a log that can be monitored.

Normal email workflow does not change

Attachments are automatically uploaded to the online storage space, so users can continue to send messages with attachments as they always have.

The load on mail servers is reduced

Mail systems run more stably because users can send large attachments and attachments to mailing lists with no extra load placed on the mail server.

Optional Fees

There are no optional fees for using the online storage feature.

However, customers must have contracted for the IIJ Document Exchange Service.

Feature Highlights

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IIJ developed the IIJ Secure MX Service to provide our customers with a convenient and safe email environment, and we will continue to work to expand its functionality.

About IIJ

Founded in 1992, Internet Initiative Japan Inc. (IIJ, NASDAQ: IIJI, Tokyo Stock Exchange Mothers: 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 Mothers market of Tokyo Stock Exchange in 2005. For more information about IIJ, visit the IIJ Web site at http://www.iij.ad.jp/en/.

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.