Tumbleweed Appoints Trio of Regional Vice Presidents to Sales Organization

Tumbleweed® Communications Corp. (Nasdaq: TMWD), the industry's leading pure play messaging security vendor, today announced three key management appointments to its sales organization. Joseph Morini has been named regional vice president for the East Region of North America; Thomas Keane has been named regional vice president for the Central Region of North America; and Bob Booth has been named regional vice president for Latin America & Caribbean. The three new executives bring deep technical knowledge in messaging security and an exceptional track record for growing sales revenues. Joseph Morini, Regional Vice President, East Region of North America – Mr. Morini is a security industry veteran with significant senior management experience. He was previously head of Eastern operations for Websense, where he led significant revenue growth over five years through channel partners. Prior to that, he was vice president of the Mid-Atlantic region for Electronic Data Systems. As the RVP for Tumbleweed’s East Region of North America, he will leverage his previous success, and play a pivotal role in the company’s growth. Thomas Keane, Regional Vice President, Central Region of North America – Mr. Keane is a seasoned senior manager with deep industry knowledge and experience working with channel partners throughout the U.S. and Canada. Prior to his appointment, he was vice president of Sales for the Enterprise Security Unit of Aladdin Knowledge Systems. As the RVP for Tumbleweed’s Central Region of North America, he will play a critical role in growing the company’s customer base and distribution channels in both the U.S. and Canada. Bob Booth, Regional Vice President, Latin America & Caribbean – Mr. Booth joins Tumbleweed with more than 20 years of experience. Most recently, he served as regional director, Latin America, for Check Point Software Technologies, a security leader. In his tenure, he led significant growth in Latin American revenues, establishing distribution channels and sales teams throughout the region, with subsidiaries in Brazil and Mexico. In his new role with Tumbleweed, Mr. Booth will leverage his previous success with responsibility for overall company operations in Latin America & Caribbean. Mr. Morini and Mr. Keane will report to Jim Cumella, vice president of the North America Sales at Tumbleweed, while Mr. Booth will report to Nick Hulse, executive vice president of Worldwide Field Operations at Tumbleweed. "Each of these professionals brings deep expertise, proven results-driven performance and exceptional business acumen – I anticipate that their collective talents will help take our company to a whole new level,” said Hulse. "I fully expect their appointments to facilitate rapid growth in our customer, channel and partner base. Further, I am delighted by our investment in Latin America, as I believe that region of the world is ripe for Tumbleweed’s strong and differentiated products – I’ve no doubt that Bob will have immediate impact expanding our presence.” 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 continuing employment of Mr. Morini, Mr. Keane and Mr. Booth, as well as their impact on the growth of Tumbleweed’s customer, channel and partner base. 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 May 10, 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 nearly 2,700 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 26 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.