In this article, I’ll show you the process to backup and restore mailbox database, here are the steps:
1. Install Windows Server Backup Feature.
Open Windows Server Backup, create a custom backup select the folder of target database Database 3, go into advanced settings and check for the VSS Full backup box.
Select Backup Destination, and start the progress of backup.
After the backup completed, the backup files located at the destination drive.
Attempt to recover.
Mount the database back.