Exhibit 32.2

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with this Annual Report on Form 10-K of Bottomline Technologies (de), Inc. (the “Company”) for the period ended June 30, 2007 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned, Kevin M. Donovan, Chief Financial Officer and Treasurer of the Company, hereby certifies, pursuant to 18 U.S.C. Section 1350, that:

(1) the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: September 12, 2007	By:	/s/    KEVIN M. DONOVAN
		Kevin M. Donovan
		Chief Financial Officer and Treasurer
		(Principal Financial and Accounting Officer)