Exhibit 99.1

CRITICAL PATH COMPLETES ACQUISITION OF DOTONE

Critical Path Gains 1,300 Corporate Customers

SAN FRANCISCO, California (July 21, 1999) -- Critical Path, Inc. (Nasdaq: CPTH),
a leading provider of business-to-business email service solutions for
corporations, Internet service providers (ISPs), Web hosting companies, and Web
portals, today announced it has successfully completed the acquisition of
dotOne, a leading corporate email messaging service provider, in a transaction
involving both cash and stock. Critical Path announced a binding letter of
intent to acquire dotOne on June 14, 1999.

dotOne, identified as a category leader in the corporate email messaging market,
brings 1,300 customer relationships as well as several strategic reseller
relationships to Critical Path. In addition, dotOne, founded in 1994, built
industry-leading messaging solutions to support enterprise/proprietary systems
such as MS Exchange, Lotus Notes, Novell GroupWise, Lotus cc:Mail. dotOne's
messaging solutions combined with Critical Path's state-of-the-art technology,
will allow Critical Path to target the corporate market through an expanded
"midsourcing" strategy. This strategy enables enterprise customers to
selectively outsource value-added messaging services without altering their
existing infrastructures or groupware solutions.

"This acquisition represents a key component to Critical Path's growth strategy
and ability to provide services to the corporate market," said Doug Hickey,
Critical Path's president and CEO. "Critical Path gains dotOne's expertise and
technology allowing for immediate "midsource" offerings, a substantial customer
base and expanded distribution.  dotOne built a formidable business, and we are
proud to add them to the Critical Path family. We look forward to building
relationships with these newly acquired customers and continuing to provide them
with the most advanced, robust messaging services."

dotOne's customer list includes companies across several industries such as
manufacturing, legal, insurance and banking such as Kraft, CNA, Continental
Airlines, Viewer's Choice/ Pay Per View, Frontier Insurance, Federal Home Bank
of Chicago, Sullivan & Cromwell, Candle Corporation and the United Nations.
Other dotOne customers include airlines, railroads, HMOs, a major-league
baseball team, and one of the largest property development companies in the U.S.

About Critical Path, Inc.

Critical Path, Inc. (Nasdaq: CPTH) is a leading provider of business-to-business
Internet messaging 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 millions of end-users through
its customer relationships. Critical Path provides reliable, secure, and
scalable email, and a flexible suite of enhanced messaging services to partners
such as E*TRADE, Network Solutions, U S West, Sprint, and ICQ.  Critical Path is
headquartered in San Francisco, California, with offices in locations nationwide
and in Germany and the UK. More information on Critical Path can be found at
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.

This press release contains forward-looking statements that involve risks and
uncertainties. The company's actual results could differ materially from those
indicated in these forward-looking statements.  Risks and uncertainties relating
to Critical Path are described in Critical Path's prospectus dated June 1, 1999
and with the periodic filings Critical Path makes with the Securities and
Exchange Commission (www.sec.gov).