This article refers to Barracuda Message Archiver Legacy Release firmware or higher.
Update Your Barracuda Message Archiver Firmware
Use the ADVANCED > Firmware Update page to manually update the firmware version of the system or revert to a previous version. If you have the latest firmware version already installed, Download Now is disabled.
Update the Definitions from Energize Updates
The ADVANCED > Energize Updates page allows you to manually update the Virus, Policy, and Document Definitions used on your Barracuda Message Archiver, as well as to change the interval at which the Barracuda Message Archiver checks for updates.
It is recommended that you set the Automatically Update to On so that your Barracuda Message Archiver receives the latest rules as soon as they are available by Barracuda Central.