Proofpoint Encryption Outlook Plug-in

A plug-in for Proofpoint Encryption is available for Microsoft Outlook 2003 and 2007 on the Windows XP, Windows Vista, and Windows 7 operating systems.

When installed, the plug-in displays a Send Securely button in the Outlook interface that users can click to send secure messages. The Send Securely button adds a header to the message that triggers a Proofpoint Protection Server rule to encrypt the message.