TMWD Tumbleweed Communications Corp (MM)

Digital Technologies Corporation, a leading system and network integration provider of security solutions in Japan, and Tumbleweed(R) Communications Corp. (Nasdaq:TMWD), a leading provider of e-mail and file transfer security solutions, today jointly announced Digital Technologies' introduction and support of the Tumbleweed MailGate AntiSpam and MailGate Edge Appliances in Japan. DTC will be featuring the MailGate products at the Networld+Interop show in Tokyo, June 8-10, 2005. These solutions can be viewed and evaluated at Makuhari Messe, 3E05 booth. MailGate AntiSpam Appliance is a secure, hardened Linux-based appliance, designed to remove spam and viruses from the email systems of small, medium, and large enterprises. MailGate AntiSpam intercepts spam at the gateway level, filtering out questionable email before it impacts email servers or breaches the corporate network. MailGate Edge is a unique secure email relay appliance that delivers state-of-the-art network-based email defense against "dark traffic," including Directory Harvest (DHA) and Denial of Service (DoS) attacks. The Appliances can be used separately or in combination for complete protection against spam, viruses and dark traffic. "Given the ever-increasing rate of phishing attacks, spam, and e-mail borne viruses that are appearing in Japan, organizations are now seeking to deploy highly effective, comprehensive, easy-to-manage, and cost-efficient security solutions, and we have been searching the market for the best solution to introduce in Japan," said Mr. Seiji Yamasaki, Sales Chief. "Through the use of the MailGate products we are able to very effectively address all of these requirements for our customers." "We are very pleased to be partnering with Digital Technologies in addressing the email security requirements of the Japan market," said Bob Crane, VP Japan and Asia-Pacific. "Digital Technologies is a well-established innovator and leader, bringing internet security solutions to their customers for over 10 years." About Digital Technologies Corporation Founded in 1988, Digital Technologies Corporation focuses on system and network integration, sales and support and maintenance of the latest computer and networking technologies. DTC has prided itself on delivering high-quality solutions by selecting market-leading products. DTMC, a wholly owned subsidiary in the U.S., provides the research and analysis of U.S. based technology companies and products. For more information on DTC, visit www.dtc.co.jp. About Tumbleweed Communications Corp. Tumbleweed provides security solutions for email protection, file transfers, and identity validation that allow organizations to safely conduct business over the Internet. Tumbleweed offers these solutions in three comprehensive product suites: MailGate, SecureTransport, and Validation Authority. MailGate provides protection against spam, viruses, and attacks, and enables policy-based message filtering, encryption, and routing. SecureTransport enables business to safely exchange large files and transactions without proprietary software. The Validation Authority is the world-leading solution for determining the validity of digital certificates. Tumbleweed's enterprise and government customers include ABN Amro, Bank of America Securities, Catholic Healthcare West, JP Morgan Chase & Co., The Regence Group (Blue Cross/Blue Shield), St. Luke's Episcopal Healthcare System, the US Food and Drug Administration, the US Department of Defense, and all four branches of the US Armed Forces. Tumbleweed was founded in 1993 and is headquartered in Redwood City, Calif. For additional information about Tumbleweed go to www.tumbleweed.com or call 650-216-2000. SAFE HARBOR STATEMENT Tumbleweed cautions that forward-looking statements contained in this press release are based on plans and expectations as of the date of the press release, and that a number of factors could cause the actual results to differ materially from the guidance given at this time. These factors are described in the Safe Harbor statement below. Except for the historical information contained herein, the matters discussed in this press release may constitute forward-looking statements that involve risks and uncertainties that could cause actual results to differ materially from those projected, particularly with respect to sales of Tumbleweed products in Japan and elsewhere in the Asian-pacific market. In some cases, forward-looking statements can be identified by terminology such as "may," "will," "should," "potential," "continue," "expects," "anticipates," "intends," "plans," "believes," "estimates," and similar expressions. For further cautions about the risks of investing in Tumbleweed, we refer you to the documents Tumbleweed files from time to time with the Securities and Exchange Commission, particularly Tumbleweed's Form 10-K filed March 16, 2005 and Form 10-Q filed May 10, 2005. Tumbleweed assumes no obligation to update information contained in this press release, which represents the Company's expectations only as of the date of this release and should not be viewed as a statement about the Company's expectations after such date. Although this release may remain available on the Company's website or elsewhere, its continued availability does not indicate that the Company is reaffirming or confirming any of the information contained herein.