Backing up is a safe method to keep the data or the information with you if one gets lost. It solves the problem of data loss from accidental deletion. For Exchange Office 365 backup solution, I propose you try MailsDaddy Office 365 Backup Tool. This is the best o365 backup solution for acquiring the method to export Office 365 mailboxes to PST file format. Unlike from the manual process of backing up Exchange Online data, it also creates and saves a backup of o365 mailboxes in MBOX, EML, and MSG.

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