Enable the Accellion Attacher Outlook Add-In:

1. In Outlook, select File > Options.
2. In the left panel, select Add-ins.
3. Ensure Accellion Attacher Outlook Add-in is listed under Active Application Add-ins:
   • If the Accellion Attacher Outlook Add-in is listed under Inactive Application Add-ins, highlight Accellion Attacher Outlook Add-in and select Go.
   • If the Accellion Attacher Outlook Add-in is not listed, install Accellion.
4. In the COM Add-ins pop-up box, tick Accellion Attacher Outlook Add-in and select OK. The Accellion Attacher Outlook Add-in should now be listed under Active Application Add-ins.

To use Accellion:

1. Select the Windows Start icon, type Accellion in search, and select Accellion Outlook.