Moving emails from an IMAP account to Microsoft 365 requires planning, especially when an organization has several mailboxes. Administrators should confirm credentials, map source mailboxes to the correct Microsoft 365 users, and decide whether all folders or selected messages need transferring. A small test migration helps identify problems before the wider rollout.

The Aryson IMAP Backup Tool supports migration from IMAP mailboxes to Microsoft 365 and provides CSV-based batch processing for multiple accounts. Administrators can use folder mapping and filters, including date-range and item selection, to organize the transfer. The software also supports duplicate handling and preserves folder hierarchy, email formatting, attachments, and metadata during migration.

To move emails from IMAP Account to Microsoft 365, prepare a CSV file for bulk processing when needed, verify destination mailboxes, and review the migration report. Check important messages, attachments, and folder organization before treating the migration as complete. Keep the source account available until results are confirmed, and resolve skipped or failed items before moving on to remaining users. This helps IT teams manage the transition and validate migrated email data across the organization while keeping the migration process easy to track.