Tumbleweed Continues Channel Expansion with Sustained Asia Pacific Partner Growth

Addition of a dozen new premiere channel partners to facilitates rapid sales growth in Asia Pacific

Redwood City, Calif. – September 28, 2007 – Tumbleweed® Communications Corp. (NASDAQ: TMWD), an industry leader in managed file transfer and content security, today announced its continued channel program growth in the Asia-Pacific region with the signing of 12 new partners.  With these new premier partners, the company has significantly expanded the number of professionals selling its products in India, New Zealand, Malaysia, Hong Kong, Australia, Japan, Thailand, and Singapore.  The consistent demand for innovative, dependable and easy-to-use content security solutions is fueling Tumbleweed’s ongoing channel expansion across a variety of verticals.

The partner program continues to enable qualified security resellers to sell Tumbleweed email security, managed file transfer, and identity validation products while providing favorable margins and strong marketing and sales support to ensure success.  Blueshift Consulting, Content Security, Digital Technology Corp. (DTC), Edvance Limited, Grative Inc., Information Gateways, Netedge Computing, OGA Syncom, Open Systems, Priority 1 Solutions, Serv-Touch WYWY, and Toppan Forms are among the top partners who recently joined Tumbleweed in Asia-Pacific.

"The Tumbleweed offering has already been very well accepted by a range of private organizations and government departments in Australia,” said Marc Jolly, Priority 1 Solutions' Managing Director. “We design and develop security solutions for our clients based on their requirements, and the Tumbleweed offering will enable us to implement a comprehensive security solution quickly and with a minimum of fuss – something that most IT departments welcome."

Tumbleweed partners include Value Added Resellers, Distributors, Solution Providers, Service Providers and System Integrators.  These partners provide a variety of security services and solutions to large and mid-sized enterprise and government customers around the world.

“The rapid expansion of our premier partners in the Asia-Pacific region is a testament to the strength of Tumbleweed’s products and program,” said Nick Hulse, Executive Vice President of Worldwide Field Operations at Tumbleweed.  “Our continued growth around the world demonstrates our commitment to the channel by offering products and support that promote the growth and profitability of our partners.”

More information about the Tumbleweed Alliance Program qualifications and details can be found at the Tumbleweed Web site at www.tumbleweed.com/partners/index.html.

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 the Tumbleweed Alliance Program, the continued participation of current members of the program, the number of professionals selling Tumbleweed solutions, and the functionality of Tumbleweed solutions. 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 14, 2007 and Form 10-Q filed August 7, 2007.
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 Tumbleweed
Tumbleweed Communications Corp. (NASDAQ:TMWD), the industry’s leading pure play messaging security vendor, provides world-class innovative messaging security solutions for organizations of all sizes.  Organizations rely on Tumbleweed's solutions to securely manage their Internet communications, spanning email management to file transfers. Tumbleweed has more than 2,900 customers worldwide, representing industries such as Finance, Healthcare, and the U.S. Government. The world’s most security conscious organizations rely upon Tumbleweed technology including Bank of America Securities, JP Morgan Chase & Co., the U.S. Food and Drug Administration, and the U.S. Department of Defense. Our award-winning products build on fourteen years of R&D and 27 security patents in the U.S. alone – many of which are licensed by other security vendors. More information can be found at www.tumbleweed.com.

Tumbleweed is a registered trademark of Tumbleweed Communications Corp. in the United States and/or other countries. All other trademarks are the property of their respective owners.

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