EXHIBIT 23.1

                              CONSENT OF KPMG LLP

The Board of Directors
Tumbleweed Communications Corp.:

    We consent to the use of our reports dated January 17, 2000, relating to the
consolidated balance sheets of Tumbleweed Communications Corp. as of
December 31, 1999 and 1998, and the related consolidated statements of
operations, stockholders' equity, and cash flows for each of the years in the
three-year period ended December 31, 1999, and the related financial statement
schedule which reports are included herein, and to the reference to our firm
under the heading "Selected Consolidated Financial Data" and "Experts" in the
prospectus.

                                          /s/ KPMG LLP

San Francisco, California
July 11, 2000