This article refers to the Barracuda Cloud Archiving Service and Microsoft Exchange Server 2016 and 2019.
In addition to emails that are automatically sent from your Microsoft Exchange Server to the Barracuda Cloud Archiving Service for storage, you can also configure non-email items such as Appointments, Contacts, Notes, and Tasks for archive. This allows you to get a more complete picture of all items that are or have been stored on your Exchange Server, and eliminates the need to keep .pst files around solely for the purposes of retaining this information.
The archiving, or synchronization, of all non-email items is configured on the Mail Sources > Exchange Integration page. You can configure synchronization of all or a portion of the Outlook items, be it for all or selected users, on a recurring basis.