Tumbleweed Names James Guthrie EVP of Products; R&D Veteran Will Head Product Management, Engineering and Support

Guthrie brings to Tumbleweed two decades of experience leadingdevelopment organizations and successfully delivering world-classproducts to market. Prior to joining Tumbleweed, Guthrie was groupvice president at Borland Software, where he was responsible fordevelopment activities for the ALM integrated suite of products.Before Borland, Guthrie served as senior vice president of developmentand support at Vitria Technology, and as executive vice president ofdevelopment and customer support at Brio Software (now HyperionSolutions).

"I'm very pleased to have Jim on the Tumbleweed team, and Ibelieve he'll make a significant contribution to our product andservices strategy," said Craig D. Brennan, president and chiefexecutive officer of Tumbleweed. "Having worked closely with Jim atBrio, I've seen how his leadership, management acumen and depth oftechnical knowledge will help lead Tumbleweed to continue to build andinnovate the industry's leading secure communications products."

"Tumbleweed is a true innovator in the secure communicationsmarket, with tremendous potential to further expand the breadth anddepth of their technology offerings," said Guthrie. "I look forward toworking with the outstanding technical teams here to maximizecreativity, streamline processes, and deliver outstanding products andservices to our customers."

Guthrie received his MBA from Texas Tech University and his BSEEfrom the University of North Dakota.

About Tumbleweed Communications Corp.

Tumbleweed provides security software and appliances for emailprotection, file transfers, and identity validation that alloworganizations to safely conduct business over the Internet. Tumbleweedoffers these products in three comprehensive suites: MailGate,SecureTransport, and Validation Authority. MailGate providesprotection against spam, viruses, and attacks, and enablespolicy-based message filtering, encryption, and routing.SecureTransport enables businesses to safely exchange large files andtransactions without proprietary software. Validation Authority is theworld-leading solution for determining the validity of digitalcertificates. Tumbleweed's enterprise and government customers includeABN Amro, Bank of America Securities, Catholic Healthcare West, JPMorgan Chase & Co., The Regence Group (Blue Cross/Blue Shield), St.Luke's Episcopal Healthcare System, the US Food and DrugAdministration, the US Department of Defense, and all four branches ofthe US Armed Forces. Tumbleweed was founded in 1993 and isheadquartered in Redwood City, Calif. For additional information aboutTumbleweed go to www.tumbleweed.com or call 650-216-2000.

SAFE HARBOR STATEMENT

Tumbleweed cautions that forward-looking statements contained inthis press release are based on plans and expectations as of the dateof the press release, and that a number of factors could cause theactual results to differ materially from the guidance given at thistime. These factors are described in the Safe Harbor statement below.

Except for the historical information contained herein, thematters discussed in this press release may constitute forward-lookingstatements that involve risks and uncertainties that could causeactual results to differ materially from those projected, particularlywith respect to Tumbleweed's product development and productofferings, and management in general. In some cases, forward-lookingstatements 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, werefer you to the documents Tumbleweed files from time to time with theSecurities and Exchange Commission, particularly Tumbleweed's Form10-K filed March 16, 2005 and Form 10-Q filed August 9, 2005.

Tumbleweed assumes no obligation to update information containedin this press release, which represents the Company's expectationsonly as of the date of this release and should not be viewed as astatement about the Company's expectations after such date. Althoughthis release may remain available on the Company's website orelsewhere, its continued availability does not indicate that theCompany is reaffirming or confirming any of the information containedherein.