Critical Path's Memova Messaging Platform Enables ONO to Enhance and Expand Service Offering.

ONO to Offer Advanced Web Mail, Calendaring, Search and Other Value-Added Services to 1.2 Million Subscribers in Spain

SAN FRANCISCO & MADRID, Spain -- Critical Path, Inc. (OTC:CPTH), a leading provider of messaging software and services, today announced that ONO, the premier alternative provider of telecommunications, broadband Internet and pay television services in Spain, is deploying Memova Messaging 8.0 - the latest version of Critical Path's consumer messaging platform for service providers. ONO is deploying the Memova Messaging platform to make messaging services easier to use and to provide a broader range of community-oriented communication and content-sharing services for its 1.2 million residential subscribers. The initial rollout will include improved Web mail and calendaring, as well as new search capabilities that will help ONO subscribers easily navigate the content in their Web-based mailboxes and calendars.

ONO aims to provide its customers with reliable, easy-to-use services that add value to their Internet experience. By selecting Critical Path's Memova Messaging platform, ONO can provide enhanced email services, as well as new, community-oriented communications services that can be easily integrated with email to provide a more robust service offering.

With Memova Messaging 8.0, ONO will provide a rich Web 2.0 experience with features such as: dynamic updates that allow users to receive new email messages instantly without refreshing the browser; drag-and drop-functionality and right-click menus on both the email and calendaring interfaces; auto-complete email address fields; and advanced search capabilities that can be integrated with a variety of messaging and communications services.

In addition, ONO has agreed to work with Critical Path to design and launch additional new services that will help subscribers better communicate and interact with their online communities and social networks. For example, Memova Messaging provides services, such as: content-sharing for user-generated music, pictures, videos and other content; network-based address book services that allow subscribers to store contacts online and access them from any device or application; contact-centric communications services that bring email, instant messaging, VoIP and other applications together in a single interface that revolves around the user's contacts.

"Critical Path is excited to work with ONO to provide a new and improved email experience and to lay the foundation for a variety of new services for Spanish consumers," said Jesus Calderon, Country Manager, Spain & Portugal and LATAM, Critical Path, Inc. "We look forward to continuing to work with ONO to leverage Memova Messaging as they grow and expand their consumer service offering."

For more information about Critical Path and Memova Messaging, visit http://www.criticalpath.net.

About Critical Path, Inc.

Critical Path's Memova[R] solutions provide a new and improved email experience for millions of consumers worldwide, helping mobile operators, broadband and fixed-line service providers unlock the potential of email in the mass market. Memova[R] Mobile gives consumers instant, on-the-go access to the Messages that Matter[R] most. Featuring industry-leading anti-spam and anti-virus technology, Memova[R] Anti-Abuse protects consumers against viruses and spam. Memova[R] Messaging provides consumers with a rich email experience, enabling service providers to develop customized offerings for high-speed subscribers. Headquartered in San Francisco with offices around the globe, Critical Path's messaging solutions are deployed by service providers throughout the world. More information is available at www.criticalpath.net.

Forward-Looking Statements:

This press release contains forward-looking statements by the Company and its executives regarding the performance of our product and service offerings, the availability of our customer's services, which include our products, the ability of our customers to expand and enhance their service offerings with our products and the ability of our customers to deploy future services with our products. The words and expressions "look forward to," "will," "expect," "plan," "believe," "seek," "strive for," "anticipate," "hope," "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, the emerging and changing nature of the market for our products and services, and the ability of our technology to address customer and consumer demands. These and other risks and uncertainties are described in more detail in the Company's filings with the U.S. Securities and Exchange Commission made from time to time including Critical Path's Quarterly Report on Form 10-Q for the three months ended June 30, 2007 and all subsequent filings with the United States Securities and Exchange Commission (available at www.sec.gov). The Company makes no commitment to revise or update any forward-looking statements in order to reflect events or circumstances after the date any such statement is made.

Note to Editors: Critical Path, the Critical Path logo, Messages that Matter, Memova and the Memova logo are the trademarks of Critical Path, Inc., registered in various jurisdictions. All other trademarks are the property of their respective holders.