[Essentials] Proofpoint Essentials Email Encryption Plug-in for Outlook

*For customers using Proofpoint Essentials Email Encryption feature*

About

The Proofpoint Encryption Plug-in for Microsoft Outlook allows users to send secure messages from within the Outlook interface. (This plug-in is also known as the Encryption “Thin” plug-in.) 

Step 1: Download the proper Outlook Plug-In

Refer to the compatibility matrix below.

Step 2: Install the Outlook Plug-In

1. Double-click the downloaded installation file to start the installation process
2. Click Run on the security warning if it pops up
3. Click Next on the Proofpoint Encryption Plug-In for Microsoft Outlook Setup screen
4. Check the box for the license agreement and click Next
5. Click Next to install in the default folder or click Change to select another location
6. Click Next
7. Click Install
8. Click Finish when the installation has completed

Step 3: Verify Installation

1. Launch Outlook
2. Compose message
3. Look for the Send Securely button in the message composition window

Step 4: Create a Custom Filter

1. Login to the interface
2. On the Company Settings tab, click Filters
3. Click the Outbound Tab
4. Click New Filter
5. Enter a name for the filter (e.g., Encryption Plug-In)
6. Click Continue
7. Select Email Headers from the drop-down list
8. Select Contain(s) Any Of from the drop-down list
9. Type x-proofpointencryptdesktop; into the text field
10. Select Encrypt from the drop-down list to the right of Do
11. Click Save

Proofpoint Encryption Plug-In Compatibility Matrix