EXHIBIT 23

                        CONSENT OF INDEPENDENT AUDITORS

   We consent to the incorporation by reference in the Registration Statements
(Form S-8 Nos. 333-78471, 333-78467, 333-78469 and 333-78473) pertaining to the
1998 Employee Stock Purchase Plan, the Amended and Restated 1997 Stock
Incentive Plan, the Amended and Restated 1989 Stock Option Plan and the 1998
Director Stock Option Plan of Bottomline Technologies (de), Inc. of our report
dated August 2, 1999, with respect to the financial statements and schedule of
Bottomline Technologies (de), Inc. included in the Annual Report (Form 10-K)
for the year ended June 30, 1999.

                                          /s/ Ernst & Young LLP

Boston, Massachusetts
September 24, 1999