Restore Prerequisites

To perform a Brick Level restore, you must first meet the following prerequisites:

The Exchange Server must be running and the storage groups, mailbox stores, and mailboxes that you are restoring to must already exist (they are not created during the restore process).
If you are restoring to a mailbox, it cannot be disabled
The account you are using to restore must meet the backup agent service account requirements for the machine you are restoring to. For information on these requirements, see Backup Agent Service Account Requirements for Brick Level Restore.

More information: