Backups of Exchange Online with Premium Microsoft 365 Backup Storage is an ultra-fast recovery method handled by Microsoft 365 Backup Storage. Microsoft Backup is designed to provide comprehensive coverage of your organization's critical data that is always protected and easily recoverable.
The feature summary of Microsoft 365 Backups for Exchange Online are:
-
The retention period is set for 1 year.
-
The backup granularity is set for an Exchange Online account.
-
Recovery point objective (RPO) of 10 minutes.
If the backup item is modified, the item will be save as a new version every 10 minutes, regardless of how many changes occur within that 10-minute period.
For example, if a ransomware attack encrypts the email item every minute, a copy will be taken six-times in an hour.