FreeBSD Dovecot to Microsoft 365 Migration

Job ID: 40271324

Budget: $250 – $750 USD

I run a FreeBSD mail server that uses Dovecot for IMAP. I’m ready to retire that box and move everything— emails only, no contacts or calendars— into Microsoft 365. 10 active mailboxes need to make the jump.

Here’s what I need from you: plan the cut-over, copy every message into the correct Microsoft 365 mailbox, and leave me with a clean, documented switchover that keeps downtime to an absolute minimum. I will handle the licensing on the Microsoft side and any DNS or MX tweak and verification that each user can sign in and see a complete, intact mailbox.. You handle the data moves.

Deliverable summary:
• All emails replicated for every account
• Guidance on DNS/MX records updating and propagating
• Assistance with post-migration validation report confirming messages, folders, and send/receive tests for each user

If you’ve migrated Dovecot systems before—or just know every corner of Microsoft 365’s import tools—let’s get it done.