TMWD Tumbleweed Communications Corp (MM)

Tumbleweed(R) Communications Corp. (NASDAQ:TMWD), a leading provider of email security, managed file transfer, and identity validation appliance and software products, today announced that the Tumbleweed MailGate(R) Edge and MailGate Email Firewall have received a Checkmark PREMIUM Anti-Spam Certification from West Coast Labs, according to the organization's most recent Anti-Spam Solutions Technology Report. Tumbleweed received the Checkmark PREMIUM rating, the highest rating awarded by West Coast Labs. Tumbleweed's spam capture rate of 98 percent with zero false positives demonstrates the ability to block nearly all spam while ensuring legitimate emails are not blocked or lost using the Tumbleweed MailGate Edge(TM) and MailGate Email Firewall(TM) solutions. The entire report can be found at: http://www.tumbleweed.com/pdfs/spam_tumbleweed.pdf "We are extremely pleased that yet another independent testing lab has recognized the combination of power, performance and usability that the Tumbleweed MailGate product suite offers in the fight against the growing spam problem," said John Thielens, CTO of Tumbleweed Communications. "Tumbleweed is committed to providing its customers with the most effective email security solutions available. The Checkmark PREMIUM rating is a testament to this commitment, and further validation of MailGate's effectiveness." The West Coast Labs Checkmark PREMIUM rating is the latest of several recent awards received by Tumbleweed MailGate for outstanding product performance. The most recent include: -- Best Email Content Filtering Solution by SC Magazine -- Five-Star rating from the VeriTest Anti-Spam Benchmark Service Report -- "Recommended" rating from the editors of SC Magazine -- "Editor's Choice Award" by Web Week The West Coast Labs Technology Reports feature independent technical analysis of each solution tested to pre-published methods and reviewed against the functionality criteria of the Checkmark certification program. This ensures that all the products are tested against real-world standards and establishes how each performs in a simulated business environment. The Anti-Spam Solutions Technology Report addressed the issues of management/administration, functionality and performance as the key criteria for the Anti-Spam tests. SAFE HARBOR STATEMENT Tumbleweed cautions that forward-looking statements contained in this press release are based on current plans and expectations as of the date of this 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 the performance and functionality of Tumbleweed's products. 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 November 2, 2005. Tumbleweed assumes no obligation to update information contained in this press release. Although this release may remain available on Tumbleweed's website or elsewhere, its continued availability does not indicate that Tumbleweed is reaffirming or confirming any of the information contained herein. About West Coast Labs West Coast Labs is an independent organization which tests and validates the functionality and performance of information security products. West Coast Labs has also developed the Checkmark certification system into one of the world's foremost certification programs -- an integrated system of standards that are recognized around the world as reliable indicators of performance levels. For more information, visit: www.westcoastlabs.org. 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(TM), and Validation Authority(TM). 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. 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 U.S. Food and Drug Administration, the U.S. Department of Defense, and all four branches of the U.S. 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. Tumbleweed, the Arrows logo, MailGate, MailGate Edge, MailGate Email Firewall, SecureTransport and Validation Authority are either registered trademarks or trademarks of Tumbleweed Communications Corp. in the United States and/or other countries. All other trademarks are the property of their respective owners.