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) Appliance has received a five-star rating from the VeriTest Anti-Spam Benchmark Service Report based on testing done during the Fall of 2005. Five stars is the highest possible rating a product can achieve. "These performance results validate our belief that Tumbleweed provides one of the industry's most effective solutions to protect against email related threats," said Dave Brunswick, senor product manager, of Tumbleweed Communications. "We are particularly pleased that Tumbleweed measured a zero percent false positive rate during this test. Although it is critical that our solutions block junk mail and potentially harmful emails, it is equally important that our solutions do not block valid and legitimate emails our customers expect to receive." Tumbleweed received an overall rating of five out of five stars with a spam capture rate of 99.47 percent based on the "out-of-box" settings. Additionally, Tumbleweed measured zero false positives meaning that no legitimate emails were blocked using the Tumbleweed MailGate Appliance(TM). The entire report can be found at: http://www.tumbleweed.com/pdfs/VeriTest_Anti-Spam_Report_Vol4_all_c. pdf (Due to its length, this URL may need to be copied/pasted into your Internet browser's address field. Remove the extra space if one exists.). The VeriTest Anti-Spam Benchmark Service, conducted four times a year, measures the effectiveness of anti-spam technologies. The VeriTest evaluated five email security vendors with solutions in the areas of application software, gateway appliances and hosted services. About VeriTest VeriTest, the independent testing division of Lionbridge (NASDAQ:LIOX), is the industry's most trusted brand for high-quality, cost-effective outsourced testing, competitive analysis and certification services. For more information, please visit http://www.veritest.com. 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 Appliance, 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.