A full backup isn't always what's best except in major restoration processes. Sometimes, you'll just need to restore individual files or sites. In this section, we'll cover the restoration process for content that's been deleted in Exchange, SharePoint, and OneDrive. We'll start with restoring mailboxes in Exchange.
Planning for restoring deleted content
Exchange
When a user leaves an organization and their user account is deleted, their mailbox is automatically retained and recoverable for 30 days. You would need to reactivate their user account to restore the mailbox.
If you place a retention policy or litigation hold on the user's mailbox before it is deleted, it can be retained beyond...
