Critical Path Powers First Spanish-Language Portal in Argentina for Universo Online International.

Business Editors/High Tech Writers

SAN FRANCISCO--(BUSINESS WIRE)--Feb. 7, 2000

Critical Path Taps Into Latin America's Booming Internet Population

Critical Path Inc. (Nasdaq: CPTH), the dominant, global provider of advanced Internet messaging and collaboration solutions, today announced that the first Spanish-language portal, Universo Online Argentina (UOL Argentina), will be based on Critical Path's Internet messaging and directory technology.

The portal, which was launched by UOL International, a subsidiary of UOL, Inc., will be emulated in other Spanish and Portuguese speaking countries in the coming months.

&uot;There were several reasons for choosing Critical Path,&uot; said Humberto R. Baptista, general technology manager for UOL International. &uot;One of the most important was that Critical Path's products allow UOL Argentina to have a common platform that will serve hundreds of thousands of users worldwide.&uot;

The parent company, UOL, Inc., also is using Critical Path's products with its site licenses in Latin America, Spain and Portugal. &uot;We soon will be launching additional sites in Mexico, Chile, Venezuela and Colombia,&uot; said Fabio Tagnin, technical general manager of Brasil Online, UOL, Inc.'s free e-mail system and new portal. &uot;We are relying on Critical Path's products to support our portal and e-mail services in these locations, as well as in our future locations.&uot;

According to Fred Nassel, strategic accounts director for Critical Path's Latin American region, the engagement with UOL International in Latin America demonstrates Critical Path's leadership in the service provider and portal market. &uot;Our customers are convinced of our superior technology,&uot; he said. &uot;Critical Path's products provide high performance, they are scalable and reliable and can be integrated with cost-effective hardware solutions.&uot;

Worldwide usage of the Internet is skyrocketing. &uot;Critical Path hosts 56 million mailboxes worldwide, thereby demonstrating the growing market demand for our messaging products and strengthening our position as a leading supplier to service providers and telcos,&uot; said Paul Gigg, COO of Critical Path. &uot;Our high performance, scalable and reliable solutions, integrated with low-cost hardware, are critical to the success of Web portals and Internet Service Providers in today's fast paced market.&uot;

About UOL

Universo Online is owned by Grupo Abril and Folha, an important newspaper publisher and the largest Internet service provider and portal in Latin America. UOL Argentina was launched in September of 1999 and offers a great variety of high quality content, such as videochats with famous people, discussion forums, sales events, virtual friends, an exclusive search engine, movie guides, restaurant lists and the latest news, both local and international. UOL has portals in Mexico, Chile, Venezuela and Colombia with local offices in each country. The most recent launch was last December with. UOL in Spanish (www.uole.com) aimed at the Spanish-speaking community in the United States.

The UOL international operation has a local integration strategy designed for each country and a business model based on advertising and e-commerce.

About Critical Path, Inc.

Critical Path, Inc. (Nasdaq: CPTH) is the dominant global provider of complete end-to-end Internet messaging and collaboration solutions for corporations, Internet service providers (ISPs), Web hosting companies and Web portals. Critical Path has built an industry-leading global infrastructure with data centers connected to key Internet exchange points and currently reaches more than 50 million end-users through its customer relationships. Critical Path provides reliable, secure, and scalable e-mail and a flexible suite of enhanced messaging services to partners such as E*TRADE, CompuServe, Network Solutions, U S West, Sprint, France Telecom, British Telecommunications, and ICQ. Critical Path is headquartered in San Francisco, with offices in locations nationwide and in Germany, England, Ireland, France, Italy, Switzerland, and Argentina. More information on Critical Path can be found at http://www.cp.net .

Critical Path is a service mark and the Critical Path logo is a trademark of Critical Path, Inc. All other trademarks are the property of their respective holders.

The statements in this press release relating to matters that are not historical are forward-looking statements. Actual results could differ materially from these forward-looking statements. Risks and uncertainties facing Critical Path are described in its prospectus dated June 1, 1999 and with its periodic filings with the Securities and Exchange Commission (http://www.sec.gov).