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[CRITICAL PATH LOGO]

Critical Path, Inc.
350 The Embarcadero
San Francisco, California 94105-1204

June 24, 2002

To the Shareholders,

     The enclosed 2001 Critical Path Annual Report was printed prior to the
recent changes on our Board of Directors. In order to provide shareholders with
a proxy statement that incorporates these changes, we moved our meeting date
from June 5 to July 23.

     Accordingly, please note that the annual meeting date and venue are now as
follows:

     The 2002 Annual Meeting of Shareholders will be held:

     July 23, 2002 at 10:00 am PST
     Hyatt Regency San Francisco Hotel
     5 Embarcadero Center
     San Francisco, CA 94111
     RSVP to ir@cp.net or 415-541-2515

     We apologize for any confusion and please feel free to contact Critical
Path's investor relations department if you have any questions at 415-541-2515.

                                          Thank you,

                                          /s/ WILLIAM E. MCGLASHAN, JR.
                                          William E. McGlashan, Jr.
                                          Chairman and Chief Executive Officer


                  CRITICAL PATH APPOINTS CEO WILLIAM MCGLASHAN
                 CHAIRMAN OF THE BOARD, NOMINATES NEW DIRECTOR

       Former Mannessman AG Chairman Klaus Esser Nominated to Join Board
                  of Global Leader in Internet Communications

SAN FRANCISCO (JUNE 25, 2002) -- Critical Path, Inc. (Nasdaq: CPTH) today
announced that Chief Executive Officer William E. McGlashan, Jr., has been named
chairman of the board of directors. The Company also announced that Klaus Esser,
a general partner at private equity firm General Atlantic Partners, and former
chairman of German telecommunications giant Mannessman AG, has been nominated to
serve on its board of directors.

     Mr. Esser will stand for election at the upcoming Annual Meeting of
Shareholders to be held on July 23, 2002 at 10 a.m. at a new location, The Hyatt
Regency San Francisco at 5 Embarcadero Center, San Francisco, California.

     Mr. McGlashan, 38, a veteran executive from both the corporate world and
private equity industry, joined the board of Critical Path in April 2001. He was
named chief executive officer in January of this year after helping to lead the
company to financial stability. He previously served as the Company's interim
president and chief operating officer.

     "Bill was the driving force behind the Critical Path turnaround, and he
remains the driving force behind a solid management team that is executing well
on all fronts," said Raul Fernandez, CEO of Dimension Data North America, and a
Critical Path director. "Bill possesses the leadership and vision necessary to
build upon Critical Path's solid technology and customer base to create a
truly substantial global company."

     Prior to joining Critical Path, Mr. McGlashan served as chief executive of
technology investment firm Vectis Group LLC, and as a venture partner at Whitney
& Co. He also co-founded and served as president of Pharmanex, was co-founder
and CEO of Generation Ventures. Bill is also a Bain Capital and Information
Partners alumni. He earned a Bachelor of Arts degree in history at Yale
University and a master's degree in business administration from the Stanford
Graduate School of Business.

     "I'm honored the board has appointed me to serve as Critical Path's
chairman," said McGlashan, "and I'm also delighted to add to the board a very
talented and experienced leader with extremely relevant business experience."

     "Klaus Esser has tremendous expertise in the communications industry and in
the European and international corporate markets," said McGlashan. "He provides
a unique understanding of the vital role technology plays in global
corporations."

     An expert on the communications industry, Mr. Esser leads investment
activity in Germany for General Atlantic Partners, the global private equity
firm and a Critical Path investor. He was formerly at Mannessman AG for 23
years, most recently as chairman of the executive board. Mr. Esser is currently
chairman of the board of Apollis AG, a developer of mobile applications and
services, and is a director of GWI AG, a provider of software solutions for
hospitals. He is a graduate of the Sloan School of Management at the
Massachusetts Institute of Technology and the LMU law school in Munich.

     "Internet communications applications, specifically messaging solutions,
are becoming increasing relevant to carriers and service providers as they seek
to drive revenues globally," said Mr. Esser. "With its current installed base of
market-leading carriers and service providers, Critical Path is well-positioned
to take advantage of this trend."

     In addition to Messrs. McGlashan and Fernandez, other members of the Board
are: William E. Ford, a general partner of General Atlantic Partners LLC, a
private equity firm that focuses on investing in global information technology
and telecommunications businesses, and Jeffrey T. Webber, founder and president
of R.B. Webber & Company, which provides strategic planning and consulting
services to high technology companies in Silicon Valley.

   Critical Path Appoints CEO William McGlashan Chairman of the Board, Nominates
                                                                 New Director/ 2

ABOUT CRITICAL PATH, INC.

Critical Path, Inc. (Nasdaq: CPTH) delivers software and services that maximize
the value of Internet communications. The company provides messaging and
collaboration solutions -- from wireless, secure and unified messaging to basic
email and personal information management -- as well as identity management
solutions that simplify user profile management and strengthen information
security. The standards-based Critical Path Communications Platform, built to
perform reliably at the scale of public networks, delivers the industry's lowest
total cost of ownership for messaging solutions and lays a solid foundation for
next-generation communications services. Critical Path's customers include more
than 700 enterprises, 190 carriers and service providers, eight national postal
authorities and 35 government agencies. Critical Path is headquartered in San
Francisco with offices throughout North America, Europe, Asia and Latin America.
More information on Critical Path can be found at www.cp.net

                                     # # #

Note to Editors:  Critical Path and the Critical Path logo are the trademarks of
  Critical Path, Inc. All other trademarks are the property of their holders.

CONTACT INFORMATION:

<Table>
                                        
For Reporters:                             For Financial Analysts:
Critical Path                              Investor Relations
Shane Dolgin                               Mike Bishop
415-541-2661                               415-541-2619
shane.dolgin@cp.net                        Mike.bishop@p.net
</Table>