ROCKLIFFE ANNOUNCES MAILSITE SE VERSION 5 FOR SMALL ENTERPRISES

Major Enhancements Include Virus Scanning and Personal Calendaring

Campbell, California - May 1, 2002 - Rockliffe, Inc., the developer of e-mail and messaging infrastructure software for service providers and corporations, announced today the immediate release of MailSite SE version 5 for Small Enterprises. For organizations running their own e-mail server, Rockliffe MailSite SE has many new features and benefits such as integrated virus scanning, security improvements and personal calendaring.

Virus Scanning - Rockliffe has tightly integrated the F-Secure real-time virus scanner into MailSite SE. This new scanner can automatically detect and block viruses in all incoming and outgoing messages. Furthermore, with the new anti-virus subscription service, MailSite SE automatically downloads updated virus definition files so new viruses are detected as soon as they appear without any intervention by the system administrator.

Personal Calendaring - MailSite SE comes bundled with MailSite Express, a full-featured web messaging e-mail client. Rockliffe enhanced MailSite Express version 5 to include web-based Calendaring, Tasks, and Notes so users can manage their personal information in one place, and access it from anywhere on the Internet.

"I compared many e-mail packages with Rockliffe MailSite SE software. "None had the combination of speed, performance and easy to use features of MailSite SE," said Jeffrey Greenhouse, Executive Vice President, Averum, Inc. http://www.averum.com

"With the new anti-virus support in MailSite SE our customers no longer need to worry about viruses sneaking into their system via e-mail. MailSite SE automatically eliminates viruses without any intervention required by the administrator," said John Davies, President and CEO of Rockliffe. Davies continued, saying, " With this assurance, our customers can concentrate on their business and do not have to worry about their e-mail system."

Prices for MailSite SE start at $595 for 50 mailboxes. To purchase online, visit Rockliffe's web site at http://www.rockliffe.com

About F-Secure

F-Secure Corporation is a leading developer of centrally managed security solutions for the mobile enterprise. The company's award-winning, integrated anti-virus, file encryption and network security solutions for handhelds, laptops, desktops, servers, mail servers and firewalls provide centralized policy based management of widely dispersed user communities. Founded in 1988, F-Secure is listed on the Helsinki Stock Exchange [HEX: FSC]. Corporate headquarters is in Helsinki, Finland with North American main office in San Jose, California. The company maintains offices in Germany, Japan, Sweden and the United Kingdom, and is supported by a network of VARs and Distributors in over 90 countries around the globe. F-Secure Contact: Heather Deem, F-Secure Inc., telephone (408) 350 -2178, Heather.Deem@F-Secure.com

About Rockliffe

Rockliffe is a leading developer of scalable messaging and e-mail infrastructure software for service providers, telecom companies and enterprises. Rockliffe was established in 1995 and is based in California's Silicon Valley with European headquarters in Leeds, UK. Rockliffe has more than 3,000 customers hosting more than 15 million mailboxes worldwide. These include leading hosting providers such as Digex, Intel and ActiveISP, unified messaging providers such as Call Sciences, and large enterprises including AT&T, Boeing, Cambridge University, and UK government departments. In April 2001, Rockliffe announced a strategic relationship with Compaq Computer Corporation to jointly develop and market Rockliffe MailSite for the Compaq NonStop Himalaya platform.

Rockliffe, MailSite, and Rock-Solid Software are registered trademarks of Rockliffe Systems, Inc. All other registered names and trademarks are the property of their respective owners.