Critical Path to Host Odyssey 2001 User Conference for Worldwide Customer Base.

Business Editors/High-Tech Writers

SAN FRANCISCO--(BUSINESS WIRE)--May 24, 2001

Customers Including EDS, DuPont, Tiscali and Circuit City To Present

Applications Of Critical Path's Messaging and Directory Offerings

Critical Path, Inc. (Nasdaq:CPTH), a leading provider of Internet Messaging and Directory Infrastructure, today announced that it is hosting its 1st annual users conference, Odyssey 2001 in Lake Buena Vista, Florida from June 17-19, 2001. Sponsored by Entrust Technologies, Brightmail and Mediagate, Odyssey 2001 will provide Critical Path's global customer base with the latest product news and information, as well as demonstrate how companies worldwide are leveraging the company's Internet Messaging and Directory Infrastructure for secure, reliable and high performance Internet communication and commerce.

At Odyssey 2001, attendees will hear first hand how companies from across the globe are building their messaging, directory and eBusiness initiatives on Critical Path's technology. The primary emphasis of the conference will be on Critical Path's hosted messaging service and directory products, as well as Critical Path's successes in two core markets: corporate enterprises, and service providers, which include ISP's, Telco's, carriers, global postal authorities and financial institutions. Additionally, Critical Path will offer further details on the Critical Path Alliance program, which currently allows more than 20 technology, solution and messaging channel partners throughout the world to gain access to solutions pricing and marketing support for Critical Path's messaging and directory products.

"Odyssey 2001 is a celebration of the success we've had in meeting the global demand for Internet messaging and directory infrastructure, and a testament to our ability to service a world-class customer base," said Sue Barsamian, senior vice president of Marketing for Critical Path. "We believe this conference will provide our customers with the valuable information and insight they need to effectively leverage Critical Path technology to drive their businesses forward."

Corporate Messaging And Directory Solutions

Critical Path continues to see a growing demand for standards-based hosted messaging and directory services in the corporate enterprise. Organizations like Circuit City are leveraging Critical Path to deploy hosted messaging solutions across dispersed geographies to tens of thousands of employees. As messaging systems grow, and businesses work to tie together various other enterprise systems, Critical Path's directory and meta-directory offerings are being implemented by companies such as Amgen, Cap Gemini Ernst & Young, EDS, Marriott, Proctor & Gamble and Texas Instruments in order to securely extend their enterprise for effective eBusiness initiatives.

Global Internet Service Provider and Carrier Solutions

As service providers race to add additional services on top of and around email to drive customer loyalty and increase profit margins, Critical Path is delivering a messaging infrastructure to enable service providers to differentiate their services from their competition while decreasing time to market for new services. Critical Path addresses both the time to market and the consolidation challenges by acting as a single messaging and directory resource that can meet service provider's communications needs at mega-scalable levels. Critical Path is committed to helping service providers such as BT Genie, Fastweb, France Telecom, Globe Telecom, Tiscali, Infostrada and Globix create a world that will enable anyone to communicate with anyone, from any device, regardless of where they are or what network they are on.

"At Odyssey 2001 we will demonstrate how we have been able to quickly and effectively deliver value added messaging services by leveraging Critical Path's Internet Messaging and Directory Infrastructure," said Salvatore Pulvirenti, VP Services Development & Architectures at Tiscali. "We evaluated products from a number of companies and only Critical Path was able to provide us with the secure and reliable communications platform we required to serve our customers."

Postal Authorities, Banks and Trusted 3rd Parties

As Internet messaging becomes ubiquitous, and sending an email or retrieving a document via a secure online courier is as common as sending a letter or package through traditional mail, Critical Path is addressing the needs of postal services and other trusted third parties. PWC beTrusted, Postecom and Royal Bank of Scotland benefit from the high levels of performance, scalability and security of Critical Path's Internet Messaging and Directory infrastructure that enables them to offer value-added messaging services that their customers trust for mission-critical information exchange.

Building The Alliance

To meet the needs of its customers, Critical Path works with world-class partners around the globe, such as Corio and NetStar to deliver integrated systems and services, develop custom applications, and provide a full range of business services and solutions to joint customers. Members of the CP Alliance Program gain access to solutions pricing, marketing support for Critical Path's messaging and directory products and services, pre-sales support, implementation and customer-care training, interoperability certification and involvement in Critical Path's partner lab.

About Critical Path, Inc.

Critical Path Inc. (Nasdaq:CPTH) ignites the power of information for eBusiness by providing an Internet Messaging and Directory Infrastructure for the new economy. The company is a single resource that powers the flow of mission-critical information through an integrated portfolio of secure messaging, directory, data integration and collaboration solutions. Critical Path's technology strengthens the eBusiness value chain by providing an infrastructure to fuel customers' new and existing eBusiness initiatives. Critical Path is headquartered in San Francisco, with offices worldwide. More information on Critical Path can be found at http://www.cp.net

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.

Except for historical information contained herein, the matters set forth in this press release such as statements regarding the anticipated content of the Odyssey 2001 users conference, the Critical Path Alliance Program, the growing demand for standards-based hosted messaging and directory services in the corporate enterprise and the anticipated features and benefits of the Company's directory and meta-directory offerings, Internet Messaging and Directory infrastructure and other products and services, are forward-looking statements within the meaning of the "safe harbor" provisions of the Private Securities Litigation Reform Act of 1995. These forward-looking statements may be identified by use of terms such as "can", "allowing", "allows", "enable","may", "will" and similar terms or expressions. These forward-looking statements are subject to risks and uncertainties that may cause actual results to differ materially. These risks and uncertainties include, but not limited to, changes in economic and market conditions, the Company's ability to release new products and services in a timely manner, the success of the Company's products and services, the level of customer support, the Company's ability to retain and expand strategic alliances, the Company's ability to successfully implement, expand and maintain its Alliance Program, the Company's ability to retain and attract employees and other risks detailed from time to time in the SEC reports of Critical Path, Inc. including its annual report on Form 10-K/A for the year ended December 31, 2000 and the Company's subsequent filings with the Securities and Exchange Commission. These forward-looking statements speak only as of the date hereof. Critical Path, Inc. disclaims any intention or obligation to update or revise any forward-looking statements.