Tumbleweed Announces Geoff Galat as Vice President of Corporate Marketing

REDWOOD CITY, CA - June 4, 2001 - Tumbleweed® Communications Corp. (Nasdaq:TMWD), a leading provider of mission critical messaging software, today announced the addition of Geoff Galat as Vice President of Corporate Marketing.

"We're pleased to announce the addition of Geoff Galat as Vice President of Corporate Marketing," said Doug Sabella, president and COO, Tumbleweed Communications Corp. "His leadership and management experience in corporate marketing will enable us to accelerate our efforts to grow and expand our market presence."

Prior to joining Tumbleweed, Galat served as Vice President of Marketing at Luminate. He also held various senior management roles at Mercury Interactive for over five years, including the last two as Vice President of Corporate Marketing. Prior to Mercury Interactive, Galat led his own consulting firm providing visual communications services to high technology companies. He also spent seven years with GRiD Systems Corporation, where he served in a range of marketing and marketing management roles."

"Tumbleweed solutions are vital to companies and organizations who are seeking to reduce costs and communicate securely with business partners, customers, and employees over the Internet," said Geoff Galat, Vice President of Corporate Marketing, Tumbleweed Communications Corp. "I am delighted to join an organization of Tumbleweed's caliber and look forward to helping Tumbleweed capture significant market opportunities for its software solutions."

About Tumbleweed
Tumbleweed Communications (NASDAQ: TMWD) is a leading provider of mission critical messaging software that enables organizations to manage and secure online business communications and processes. Tumbleweed's customers use the company's solutions to define secure communication networks, to centrally control and monitor the corporate communications stream and to create a foundation for automated preparation and secure Internet delivery of sensitive business information. Companies that rely on Tumbleweed Communications solutions include American Express, Chase Manhattan Bank, Chevron, Datek Online, the European Union's Joint Research Council, FDA, John Deere, Merrill Lynch, Nike, Northern Trust, NTT, Salomon Smith Barney, Travelers, United Parcel Service, and seven of the world's largest postal services. Tumbleweed Communications was founded in 1993 and is headquartered in Redwood City, CA. More information can be found at www.tumbleweed.com.

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 security features of Tumbleweed's products and the activities of any third party. 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 30, 2001 and Form 10-Q filed November 13, 2001. Tumbleweed assumes no obligation to update information contained in this press release.