Critical Path Announces Support for IBM zSeries and S/390 Mainframes Running Linux

Enterprises, carriers and service providers working to reduce costs are turning to server consolidation in an effort to achieve more productivity with less hardware. Additionally, as enterprises deploy extranet services, they are faced with the need to deploy massively scalable email solutions to support their growing user populations. The proven scalability of the CP Messaging Server combined with the proven strengths of IBM zSeries and S/390 servers enable potentially millions of users to be supported on a single machine. In addition, customers will find that the flexibility and openness of CP Messaging Server, CP Presentation Server and Linux will lead to quicker integration with other business applications.

"Large enterprises, which are becoming service providers themselves, and carriers are demanding highly scalable messaging solutions that can reach a vast number of users from a single platform," said Bernard Harguindeguy, chief marketing officer of Critical Path. "The combination of IBM servers running Linux and our highly scalable messaging platform will provide the highest reliability and performance with the lowest total cost-of-ownership (TCO) in the industry."

The Critical Path messaging solution provides Web, wireless and voice access to mail and personal address book information, with support from desktop clients such as Microsoft Outlook® as well. In addition, it is unique in its ability to be integrated with application servers, enabling messaging services to be extended to customers and partners through extranets and enterprise portals. By consolidating hardware and by running multiple applications on a single server, customers can reduce their overhead and simplify administration, reducing overall costs. Enterprises can also lower their costs by adding email as an incremental application to CRM or ERP applications running on a single server. Service providers can achieve TCO advantages by consolidating servers, conserving floor space and reducing power consumption.

Critical Path's support for IBM zSeries and S/390 mainframe servers running the Linux operating system will be available in the third quarter.

About Critical Path, Inc.
Critical Path, Inc. (Nasdaq: CPTH) delivers software and services that maximize the value of Internet communications. The company provides messaging and collaboration solutions — from wireless, secure and unified messaging to basic email and personal information management — as well as identity management solutions that simplify user profile management and strengthen information security. The standards-based Critical Path Communications Platform, built to perform reliably at the scale of public networks, delivers the industry's lowest total cost of ownership for messaging solutions and lays a solid foundation for next-generation communications services. Critical Path's customers include more than 700 enterprises, 190 carriers and service providers, eight national postal authorities and 35 government agencies. Critical Path is headquartered in San Francisco with offices throughout North America, Europe, Asia and Latin America. More information on Critical Path can be found at www.cp.net.

Forward Looking Statements:
This press release contains forward-looking statements by the Company and others regarding endorsements of and performance of our products and services, including our customers' and partners' testimonials, our belief as to the ability of our products and technology to enable cost-savings, security, scalability and reliability and the market for outsourced services like ours. The words "will," "expect," "plan," "believe," "seek," "strive for," "anticipate," "estimate" and similar expressions are intended to identify the Company's forward-looking statements. These forward-looking statements involve a number of risks and uncertainties that could cause actual results to differ materially from those anticipated. These risks include, but are not limited to, our evolving business strategy and technology, the competitive, emerging and changing nature of the market for our products and services, our ability to deliver on our sales and strategic objectives, the ability of our technology and our competitors' technologies to address customer requirements and demands, changes in economic and market conditions, unplanned system interruptions and capacity constraints, software and service design defects. These and other risks and uncertainties are described in more detail in the Company's filings with the U.S. Securities and Exchange Commission (www.sec.gov) made from time to time, including Critical Path's Annual Report on Form 10-K for the fiscal year ended December 31, 2001, as may be amended and in effect from time to time.

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Note to Editors: Critical Path and the Critical Path logo are trademarks of Critical Path, Inc. All other trademarks are the property of their holders.

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For additional information, contact:

      For Reporters:
      McGrath/Power PR
      Roger Fortier
      408.727.0351
      Rogerf@mcgrathpower.com
     
     For Financial Analysts:
      Critical Path, Inc.
      Mike Bishop
      415.541.2619
      mike.bishop@cp.net