Applies to all Email Security Gateways.
If you are unable to install the Barracuda Outlook Plug-in for the Email Security Gateway because of expired certificate errors, please download and install the latest version of the Barracuda Outlook Plug-in (2.4.5 or higher).
The newest version is available for download at:
Alternatively, you can update the firmware on your Email Security Gateway to 4.1.x. Version 2.4.5 of the Outlook Plug-in is also available in this firmware version.
Link to this page: