Email Encryption Plug in for Microsoft Outlook

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 which triggers a Proofpoint Protection Server rule to encrypt the message.

The plug-in exhibits slightly different behavior on the Microsoft Outlook 2003 and 2007 platforms.

Microsoft Outlook 2003:
- A Send Securely choice will also display in the File drop-down menu.

Microsoft Outlook 2007:
- There is no File drop-down menu.

- In addition to the Send Securely button, users will see a Proofpoint tab which also includes a   Send Securely button. Both buttons have identical functions.