This is not supported
Dismount the Microsoft Exchange database, and then remount it to resolve the issue
An attempt to connect to an Acronis Agent fails with "Active Directory is not available for the specified user. Cannot create MAPI profile. Probably, the user does not have a mailbox or Microsoft Exchange MAPI and CDO are probably out of date."
Acronis Recovery for Microsoft Exchange errors out on trying to restore Information Stores from full backup
You can recover separate mailboxes or E-Mails from a backup archive of an Information Store, but the process can be time-consuming
Acronis Recovery for Microsoft Exchange is not a cluster-aware application, and does not include support for cluster-related settings or events
List of limitations for trial versions of Acronis products
With the "Backup metadata" option checked you will later be able to restore mailboxes from the backup. Otherwise – you will not
Acronis Recovery for Microsoft Exchange is compatible with Acronis True Image Build 8163 or higher
To troubleshoot the issue, it is necessary to collect Acronis Recovery for Microsoft Exchange logs, Windows Event Logs, Windows System Information and export the restored E-mails in .eml format