Office 365 platform allows users to keep data in the cloud. Still, data on the cloud is generally handy. So, it can be a matter of unlawful access & hacking. Also, the incorrect exit of the account and accidental deletion of files or items can occur from the side of the users. In the data loss case or damaging data, there are no ways to retrieve Office 365 mailbox data. So, to deal with the account loss and data loss issues, you should backup your Office 365 mailboxes. Office 365 Emails file data, when backed up as PST files, is relaxed to share too.