Exhibit

We hereby consent to the incorporation by reference in the Registration Statements on Form S‑8 (No. 333-180839, No.333-187321, No. 333-194599 and No. 333-202312) of Proofpoint, Inc. of our report dated February 25, 2016 relating to the financial statements and the effectiveness of internal control over financial reporting, which appears in this Form 10‑K.