These requirements must be met for this procedure to be
successful.
- For VSS restores, the mailbox database to be restored must be
in the same Administrative Group. The backup must be taken on the
same version of Exchange Server for the restore to complete.
- You must run the restore from an account that has Receive As and
Send As permissions on all mailboxes to be restored.
- You cannot use multiple instances of Data Protection for Microsoft Exchange to
restore databases into the recovery database simultaneously.