EX-32.1 10 dex321.htm CERTIFICATION OF CEO PURSUANT TO SECTION 906

Exhibit 32.1

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 the Annual Report on Form 10-K of Open Text Corporation (the “Company”) for the year ended June 30, 2011 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, John Shackleton, President and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

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

/s/ John Shackleton
John Shackleton President and Chief Executive Officer

Date: August 15, 2011