PST is a Microsoft Outlook file format used for saving users' mailbox data—such as emails, address books, calendars, notes, and tasks—on a local computer. PST files can help you archive mailboxes, back up critical data and restore it later, meet security requirements of compliance mandates, and migrate mailboxes from one Exchange server to another or to Exchange Online.
ManageEngine PST Migration Tool helps you export Exchange and Microsoft 365 inboxes, contacts, and calendar contents to PST files. This free tool helps you easily import PST files to new Microsoft 365 mailboxes.
Mailbox size restriction: Email storage is often limited to enhance performance, reduce backup times, and facilitate smooth operations overall. PST files provide end users with a means of expanding their email storage by creating and maintaining one or more local archives.
Backup and recovery: If you don’t have an email administrator who regularly performs backups of your email server, then exporting your emails to a PST file is a fast and easy method to ensure you can recover your mailbox data in case of any mishaps.
Portability: PST files make email portable. You can move email from one mailbox to another, or keep your personal and work emails with you always by storing them in a USB drive to restore them at a later time.
Without a third-party tool, exporting Exchange and Microsoft 365 mailboxes requires expertise to apply the appropriate roles and permissions.
Unlike Exchange Server and Microsoft 365, users don't need special permissions and roles to export or import mailbox data. They only need the following basic permissions:
You need to meet the following requirements—in addition to the aforementioned user permissions—to log in and start exporting or importing mailboxes to PST files: