SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549

                                   FORM 8-K
                                CURRENT REPORT

    PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

                                 June 23, 2003
                           ________________________
                       (Date of earliest event reported)

                        Tumbleweed Communications Corp.
             _____________________________________________________
            (Exact name of Registrant as specified in its charter)

          Delaware                    000-26223             94-3336053
______________________________________________________________________________
  (State of Incorporation)      (Commission File No.)     (IRS Employer
                                                       Identification No.)

                               700 Saginaw Drive
                        Redwood City, California 94063
                ______________________________________________
         (Address of principal executive offices, including zip code)

                                (650) 216-2000
                ______________________________________________
             (Registrant's telephone number, including area code)

               _________________________________________________
         (Former name or former address, if changed since last report)

ITEM 2.  ACQUISITION OR DISPOSITION OF ASSETS

                  Effective June 23, 2003, pursuant to the Agreement and Plan
of Reorganization and Merger, dated as of February 18, 2003, as amended (the
"Merger Agreement"), by and among Tumbleweed Communications Corp.
("Registrant"), Valicert, Inc., a Delaware Corporation ("Valicert"), and
Velocity Acquisition Sub, Inc., a wholly-owned subsidiary of Registrant
("Sub"), Sub was merged with and into Valicert with Valicert continuing as the
surviving corporation and a wholly-owned subsidiary of Registrant (the
"Merger").

                  Pursuant to the Merger Agreement, as a result of the Merger,
(a) each outstanding share of common stock, par value $.001 per share, of
Valicert (the "Valicert Common Stock"), was converted into the right to
receive .385 of a fully paid and nonassessable share of common stock, par
value $.001 per share, of Registrant; (b) each outstanding option to purchase
Valicert Common Stock under Valicert's employee stock option plans (excluding
stock purchase rights outstanding pursuant to Valicert's 2000 Employee Stock
Purchase Plan) will be assumed by Registrant; and (c) each outstanding warrant
to purchase Valicert Common Stock, whether or not exercisable, will be assumed
by Registrant. Following consummation of the Merger, Valicert's common stock
was delisted from The Nasdaq SmallCap Market. Registrant common stock now
trades on The Nasdaq National Market under the symbol "TMWD".

                  The issuance of Registrant common stock under the Merger
Agreement as described above was registered under the Securities Act of 1933
pursuant to Registrant's registration statement on Form S-4 (File No.
333-103876) (the "Registration Statement") filed with the Securities and
Exchange Commission (the "SEC") and declared effective on June 2, 2003. The
Joint Proxy Statement/Prospectus of Registrant and Valicert included in the
Registration Statement contains additional information about this transaction.
A copy of the Merger Agreement is attached as Annex A to the Registration
Statement (and is incorporated herein by reference).


ITEM 7.  FINANCIAL STATEMENTS AND EXHIBITS

         (a)      Financial statements of business acquired.

                  (1) The historical consolidated financial statements of
                  Valicert including Valicert's consolidated balance sheet at
                  December 31, 2002 and 2001, the consolidated statements of
                  operations, cash flows and stockholders' equity for each of
                  the years ended December 31, 2002, 2001 and 2000 and
                  Valicert's Schedule II, Valuation and Qualifying Accounts
                  and Reserves for each of the years ended December 31, 2002,
                  2001 and 2000 were previously filed by Registrant with the
                  SEC in the Registration Statement (and are incorporated
                  herein by reference).

                  (2) The unaudited consolidated financial statements of
                  Valicert including Valicert's unaudited consolidated balance
                  sheet at March 31, 2003 and the unaudited consolidated
                  statements of operations and cash flows for the three months
                  ended March 31, 2003 and 2002 were previously filed by
                  Registrant with the SEC in the Registration Statement (and
                  are incorporated herein by reference).

         (b)      Pro forma financial information.

                  The unaudited pro forma condensed combined consolidated
                  financial statements of Registrant as of and for the three
                  months ended March 31, 2003 and for the year ended December
                  31, 2002 giving effect to the merger as a purchase of
                  Valicert by Registrant in accordance with Article 11 of
                  Regulation S-X (17 C.F.R. Section 210.11 (2000)) were
                  previously filed by Registrant with the SEC in the
                  Registration Statement (and are incorporated herein by
                  reference).

         (c)      Exhibits.

                  The following exhibits are being filed with this report.

                  2.1 Agreement and Plan of Reorganization and Merger by and
                  among Tumbleweed Communications Corp., Velocity Acquisition
                  Sub, Inc. and Valicert, Inc., dated as of February 18, 2003
                  (previously filed with the SEC as Exhibit 2.1 to the
                  Registration Statement and incorporated herein by
                  reference).

                  2.2 Amendment No. 1 to the Agreement and Plan of
                  Reorganization and Merger by and among Tumbleweed
                  Communications Corp., Velocity Acquisition Sub, Inc. and
                  Valicert, Inc., dated as of April 22, 2003 (previously filed
                  with the SEC as Exhibit 2.2 to the Registration Statement
                  and incorporated herein by reference).


                                   SIGNATURE

                  Pursuant to the requirements of the Securities Exchange Act
                  of 1934, the registrant has duly caused this report to be
                  signed on its behalf by the undersigned hereunto duly
                  authorized.

                                               Tumbleweed Communications Corp.


                                               By:    /s/ Eric Schlezinger
                                                      --------------------------
                                               Name:  Eric Schlezinger
                                               Title:  Assistant Secretary
Date: June 26, 2002



                                      EXHIBIT INDEX

Exhibit No.       Description
-------------     --------------

2.1               Agreement and Plan of Reorganization and Merger by and among
                  Tumbleweed Communications Corp., Velocity Acquisition Sub,
                  Inc. and Valicert, Inc., dated February 18, 2003 (previously
                  filed with the Securities and Exchange Commission as Exhibit
                  2.1 to the Registration Statement and incorporated herein by
                  reference).

2.2               Amendment No. 1 to the Agreement and Plan of Reorganization
                  and Merger by and among Tumbleweed Communications Corp.,
                  Velocity Acquisition Sub, Inc. and Valicert, Inc., dated
                  April 22, 2003 (previously filed with the Securities and
                  Exchange Commission as Exhibit 2.2 to the Registration
                  Statement and incorporated herein by reference).
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{"company-data": {"conformed-name": "TUMBLEWEED COMMUNICATIONS CORP", "cik": "0001022509", "assigned-sic": "7372", "irs-number": "943183329", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "000-26223", "film-number": "03758225"}, "business-address": {"street1": "700 SAGINAW DR", "city": "REDWOOD CITY", "state": "CA", "zip": "94063", "phone": "6502162000"}, "mail-address": {"street1": "700 SAGINAW DR", "city": "REDWOOD CITY", "state": "CA", "zip": "94063"}, "former-company": {"former-conformed-name": "TUMBLEWEED SOFTWARE CORP", "date-changed": "19990517"}}
SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549

                                   FORM 8-K
                                CURRENT REPORT

    PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

                                 June 23, 2003
                           ________________________
                       (Date of earliest event reported)

                        Tumbleweed Communications Corp.
             _____________________________________________________
            (Exact name of Registrant as specified in its charter)

          Delaware                    000-26223             94-3336053
______________________________________________________________________________
  (State of Incorporation)      (Commission File No.)     (IRS Employer
                                                       Identification No.)

                               700 Saginaw Drive
                        Redwood City, California 94063
                ______________________________________________
         (Address of principal executive offices, including zip code)

                                (650) 216-2000
                ______________________________________________
             (Registrant's telephone number, including area code)

               _________________________________________________
         (Former name or former address, if changed since last report)

ITEM 2.  ACQUISITION OR DISPOSITION OF ASSETS

                  Effective June 23, 2003, pursuant to the Agreement and Plan
of Reorganization and Merger, dated as of February 18, 2003, as amended (the
"Merger Agreement"), by and among Tumbleweed Communications Corp.
("Registrant"), Valicert, Inc., a Delaware Corporation ("Valicert"), and
Velocity Acquisition Sub, Inc., a wholly-owned subsidiary of Registrant
("Sub"), Sub was merged with and into Valicert with Valicert continuing as the
surviving corporation and a wholly-owned subsidiary of Registrant (the
"Merger").

                  Pursuant to the Merger Agreement, as a result of the Merger,
(a) each outstanding share of common stock, par value $.001 per share, of
Valicert (the "Valicert Common Stock"), was converted into the right to
receive .385 of a fully paid and nonassessable share of common stock, par
value $.001 per share, of Registrant; (b) each outstanding option to purchase
Valicert Common Stock under Valicert's employee stock option plans (excluding
stock purchase rights outstanding pursuant to Valicert's 2000 Employee Stock
Purchase Plan) will be assumed by Registrant; and (c) each outstanding warrant
to purchase Valicert Common Stock, whether or not exercisable, will be assumed
by Registrant. Following consummation of the Merger, Valicert's common stock
was delisted from The Nasdaq SmallCap Market. Registrant common stock now
trades on The Nasdaq National Market under the symbol "TMWD".

                  The issuance of Registrant common stock under the Merger
Agreement as described above was registered under the Securities Act of 1933
pursuant to Registrant's registration statement on Form S-4 (File No.
333-103876) (the "Registration Statement") filed with the Securities and
Exchange Commission (the "SEC") and declared effective on June 2, 2003. The
Joint Proxy Statement/Prospectus of Registrant and Valicert included in the
Registration Statement contains additional information about this transaction.
A copy of the Merger Agreement is attached as Annex A to the Registration
Statement (and is incorporated herein by reference).

ITEM 7.  FINANCIAL STATEMENTS AND EXHIBITS

         (a)      Financial statements of business acquired.

                  (1) The historical consolidated financial statements of
                  Valicert including Valicert's consolidated balance sheet at
                  December 31, 2002 and 2001, the consolidated statements of
                  operations, cash flows and stockholders' equity for each of
                  the years ended December 31, 2002, 2001 and 2000 and
                  Valicert's Schedule II, Valuation and Qualifying Accounts
                  and Reserves for each of the years ended December 31, 2002,
                  2001 and 2000 were previously filed by Registrant with the
                  SEC in the Registration Statement (and are incorporated
                  herein by reference).

                  (2) The unaudited consolidated financial statements of
                  Valicert including Valicert's unaudited consolidated balance
                  sheet at March 31, 2003 and the unaudited consolidated
                  statements of operations and cash flows for the three months
                  ended March 31, 2003 and 2002 were previously filed by
                  Registrant with the SEC in the Registration Statement (and
                  are incorporated herein by reference).

         (b)      Pro forma financial information.

                  The unaudited pro forma condensed combined consolidated
                  financial statements of Registrant as of and for the three
                  months ended March 31, 2003 and for the year ended December
                  31, 2002 giving effect to the merger as a purchase of
                  Valicert by Registrant in accordance with Article 11 of
                  Regulation S-X (17 C.F.R. Section 210.11 (2000)) were
                  previously filed by Registrant with the SEC in the
                  Registration Statement (and are incorporated herein by
                  reference).

         (c)      Exhibits.

                  The following exhibits are being filed with this report.

                  2.1 Agreement and Plan of Reorganization and Merger by and
                  among Tumbleweed Communications Corp., Velocity Acquisition
                  Sub, Inc. and Valicert, Inc., dated as of February 18, 2003
                  (previously filed with the SEC as Exhibit 2.1 to the
                  Registration Statement and incorporated herein by
                  reference).

                  2.2 Amendment No. 1 to the Agreement and Plan of
                  Reorganization and Merger by and among Tumbleweed
                  Communications Corp., Velocity Acquisition Sub, Inc. and
                  Valicert, Inc., dated as of April 22, 2003 (previously filed
                  with the SEC as Exhibit 2.2 to the Registration Statement
                  and incorporated herein by reference).

                                   SIGNATURE

                  Pursuant to the requirements of the Securities Exchange Act
                  of 1934, the registrant has duly caused this report to be
                  signed on its behalf by the undersigned hereunto duly
                  authorized.

                                               Tumbleweed Communications Corp.

                                               By:    /s/ Eric Schlezinger
                                                      --------------------------
                                               Name:  Eric Schlezinger
                                               Title:  Assistant Secretary
Date: June 26, 2002

                                      EXHIBIT INDEX

Exhibit No.       Description
-------------     --------------

2.1               Agreement and Plan of Reorganization and Merger by and among
                  Tumbleweed Communications Corp., Velocity Acquisition Sub,
                  Inc. and Valicert, Inc., dated February 18, 2003 (previously
                  filed with the Securities and Exchange Commission as Exhibit
                  2.1 to the Registration Statement and incorporated herein by
                  reference).

2.2               Amendment No. 1 to the Agreement and Plan of Reorganization
                  and Merger by and among Tumbleweed Communications Corp.,
                  Velocity Acquisition Sub, Inc. and Valicert, Inc., dated
                  April 22, 2003 (previously filed with the Securities and
                  Exchange Commission as Exhibit 2.2 to the Registration
                  Statement and incorporated herein by reference).