Critical Path Delivers New Consumer Email Experience with Unveiling of Memova to North American Market.

SAN FRANCISCO & NEW ORLEANS -- Memova Mobile Enables Operators to Unlock Growth Potential of Consumer Mobile Data

Critical Path, Inc. (Nasdaq:CPTH), a leading provider of messaging software and services, today unveiled Memova(TM) -- a new brand of consumer messaging solutions for mobile operators, broadband and fixed-line service providers -- at the CTIA Wireless conference in New Orleans. The Memova solutions, which include mobile email, anti-abuse, email and value-added messaging services, were unveiled today for the first time in North America.

Today's consumers demand a better email experience. They are frustrated by the proliferation of spam and viruses, they want easy access to email on-the-go without having to upgrade mobile devices, and they want to easily access and share multimedia content. As a result, service providers are responding by enriching existing services, and offering new services that can drive mobile data usage, boost subscriber loyalty and stimulate broadband adoption.

Early adoption of Memova is already happening in the Asian market, where Gartner analysts expect consumer messaging to account for most of the projected $26.2 billion of wireless data application revenue in 2008. IndosatM2, a leading Internet and multimedia service provider in Indonesia, is one of the carriers deploying the new solution.

"With Memova, our subscribers will get the rich multimedia and mobile experience they've been wanting with email," said Brata Hardjosubroto, CEO, IndosatM2. "We expect Memova to help us drive ARPU, as well as stimulate broadband adoption."

Memova enables service providers to deliver a new consumer experience, ending the days of spam-ridden mailboxes, cumbersome mobile email services and limited multimedia capabilities.

"Hundreds of millions of mobile phones are not being used for email today. By providing the mass market with a simple, feature-rich and affordable way to access email on-the-go, service providers can start to realize the revenue potential from this untapped market," said Mike Serbinis, CTO and EVP Marketing, Critical Path. "Memova Mobile makes it possible for mobile operators to go after this important data revenue with a turnkey solution that's ready to deploy and that consumers can enjoy without upgrading handsets."

Critical Path's newly branded Memova solutions include Memova(TM) Mobile, Memova(TM) Anti-Abuse and Memova(TM) Messaging:

--Memova(TM) Mobile pushes email from existing email accounts, such as Yahoo!, AOL, or any ISP, to the subscriber's mobile phone and works with any MMS handset. The solution gives subscribers complete control to select which email messages they receive. Unlike other mobile email solutions on the market today, Memova Mobile does not require a special handset or software installation, making mobile email easier to use and more affordable for consumers.

--Memova(TM) Anti-Abuse is a plug-and-play anti-virus, anti-spam appliance that stops more than 95 percent of abuse traffic from entering subscriber email, while lowering costs for the service provider. Memova Anti-abuse helps control escalating costs by dropping more than 75 percent of abuse before adding more costly message analysis.

--Memova(TM) Messaging is a solution platform that enables service providers to offer a rich consumer email experience. Focusing on the demands of broadband subscribers, Memova Messaging combines Critical Path's long-established email technology with new value-added services, such as the ability to synchronize personal information, and easily store and share multimedia content, including voice messages, video, photos and music.

About Critical Path, Inc.

Critical Path's Memova(TM) 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(TM) Mobile gives consumers instant, on-the-go access to the messages that matter most. Featuring industry-leading anti-spam and anti-virus technology, Memova(TM) Anti-Abuse protects consumers against viruses and spam. Memova(TM) 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 more than 200 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 ability of our customers to achieve cost savings and improve revenues in the provision of services, industry trends, market and customer requirements, the ability of our products and services to meet the business needs of our customers, the market for products and services like ours and the performance of our senior management in achieving strategic goals. 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, our evolving business strategy and the emerging and changing nature of the market for our products and services, our ability to deliver on our sales objectives, the ability of our technology and our competitors' technologies to address customer demands, changes in economic and market conditions, and 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/A for the fiscal year ended December 31, 2003, its Quarterly Reports on Forms 10-Q for the fiscal quarters ended March 31, 2004, June 30, 2004 and September 30, 2004, Current Reports on Form 8-K, as may be amended from time to time, and all subsequent filings with the United States Securities and Exchange Commission (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, Memova and the Memova logo are the trademarks of Critical Path, Inc. All other trademarks are the property of their respective holders.