STAMFORD, Conn./SAN FRANCISCO--(BUSINESS WIRE)--October 6, 1999-- iSend(sm) On-line Document Delivery now to include secure messaging from within existing e-mail systems Pitney Bowes, Inc. (NYSE: PBI), the world leader in mail and

messaging technology, today announced an agreement with Critical Path, Inc. (NASDAQ: CPTH), the leading provider of business-to-business Internet messaging solutions for corporations, Internet service providers (ISPs), Web hosting companies, and Web portals. Pitney Bowes will utilize Critical Path technology to bring the power of the iSend(sm) On-line Document Delivery Service to the LAN e-mail desktop. This increased functionality represents a significant step forward in Pitney Bowes' electronic messaging service, and it exemplifies Critical Path's technology leadership in the advanced messaging market.

Through this relationship, business users will be able to access iSend(sm) directly from within existing desktop e-mail clients, including MS Exchange, OutLook, Lotus Notes, Novell GroupWise, MS Mail, Lotus cc:Mail, POP3, and IMAP4 systems to send secure, trackable messages. Previously, business professionals and individuals needed to log-in to iSend(sm) through a special account accessible via any standard Web browser.

"With iSend(sm), Pitney Bowes has established an important new standard in secure, on-line document delivery services," said Judy Martin, Vice President Strategic Marketing, Pitney Bowes. "For the first time, e-mail users will be able to send truly secure messages directly from within their existing desktop e-mail client. iSend(sm) users will certainly benefit from the increased functionality and flexibility that Critical Path's technology brings, and we'll continue to develop cutting-edge solutions that make all forms of messaging easier for our customers."

The iSend(sm) System - at www.isend.com - is a new Internet-based service that combines the best of e-mail with the best of overnight delivery. iSend enables businesses to securely send and track the electronic delivery of any file to anyone with access to the Internet. It's quicker than a messenger, less expensive than overnight express, available around the clock and it's totally secure.

-- Reliable Delivery. iSend combines the availability of e-mail with

the more robust file transfer capabilities of the web to greatly

increase the reliability of on-line file delivery.

-- Universal delivery. iSend message recipients require no special

     software or proprietary protocols. Anyone with e-mail and web
     access can use iSend to send and receive deliveries. In addition,
     iSend integrates Adobe(R) Acrobat(R) Software to automatically
     convert files into a Portable Document Format (PDF), so the
     document can easily be viewed regardless of shared applications
     between the sender and recipient. Everything from word-processing
     documents, to graphics, to legal contracts and even multimedia
     files can be delivered quickly and easily.

--   Secure delivery. Unlike regular e-mail, sensitive information is
     controlled and protected through the iSend System's
     point-to-point security - including robust encryption,
     authentication and recipient password protection. iSend can also
     defend vulnerable e-mail programs from document damage and theft.

--   Controlled delivery. iSend has sophisticated tracking features,
     giving senders end-to-end visibility as to the progress of their
     file delivery.

     "The need for secure, private and trackable e-mail services grows

everyday as business users and individuals use e-mail more frequently to send time-sensitive communications," said Doug Hickey, Critical Path's president and CEO. "Critical Path is dedicated to providing the most robust and comprehensive solutions to meet the broad range of messaging needs of our customers. Pitney Bowes has nearly eighty years experience in developing leading-edge technologies that make business more effective. With Pitney Bowes' secure messaging technology and Critical Path's advanced e-mail system integration capabilities, iSend users can now realize an unbeatable combination in terms of both security and ease-of-use."

About Pitney Bowes Inc.

Pitney Bowes is a $4.2 billion premier provider of informed mail and messaging management. For more information on the iSend(sm) On-line Document Delivery System or other Pitney Bowes messaging solutions, please visit the company's web site at www.pitneybowes.com.

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 e-mail, and a flexible suite of enhanced messaging services to partners such as E*TRADE, CompuServe, 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.

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 (www.sec.gov).