Exhibit 23.1 CONSENT OF INDEPENDENT ACCOUNTANTS We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (Nos. 333-63080, 333-51504, 333-44418, 333-40476, 333-36228, 333-95933, 333-95279, 333-87553) and on Form S-3 (Nos. 333-39958, 333-38006, 333-38000, 333-36382) of Critical Path, Inc. of our report dated February 5, 2002 relating to the consolidated financial statements and financial statement schedule, which appear on this Form 10-K. /s/ PricewaterhouseCoopers LLP San Jose, CA March 27, 2003