You can use the Metallic software to back up and restore Microsoft Exchange Online.
Backups run according to the schedule and settings that are specified in the server plan, which the Metallic software automatically assigns to the each Office 365 app based on the region.
Backups run automatically every 8 hours. If a backup is already running, then the 8-hour-interval backup is skipped. The 8-hour intervals ensure complete protection for your data if the data size is smaller because of incremental backups.
Data You Can Back Up
Conversations in private channels
Public folder mailboxes
Backups You Can Perform
Forever incremental backups
When You Can Perform Backups
On a schedule: The server plan that you assign manages scheduled backups
On demand: You can perform on-demand backups at any time
Backups You Can Use for Restores
The most recent backup: For example, restore the most recent backup to its original location
A backup from a specific date: For example, restore data to a point in time before it became unusable
Backups from a date range: For example, restore data that was accidentally deleted
Destinations You Can Restore To
The current location (in place)
A different folder on the same mailbox, or a different Exchange mailbox (out of place)
A CAB or PST file
Default Global Region
The default global version of Dynamics 365 available for enterprises, where enterprise, business essentials, and academic Dynamics 365 tenants reside.
GCC Cloud Region
The U.S. federal, state, local, or tribal government, and contractors holding or processing data on behalf of the U.S. government.
GCC High Cloud Region
The United States Department of Defense, as well as contractors holding or processing DoD controlled unclassified information.
Modern authentication is used to access data for backups and restores.
Data is retained according to the Office 365 plan that you assign to a mailbox when you add it to the Exchange Online app in Metallic. The default value for data retention is indefinite. You can modify that value to limit the amount of time that data is retained.
The index server is scanned every 24 hours. Messages that are eligible for data aging based on their received time and the rules defined in the plans are pruned.