I self-host my own e-mail servers for ~25 years now. Just finished he migration to a new system today.
- OS: FreeBSD 15.0-RELEASE
- MTA: Postfix 3.10
- IMAP: Dovecot 2.3
- Filter: Rspamd 3.14
I used Imapsync to migrate the content of my Mailboxes from the old to the new system. Worked absolutely fine.
Having the E-Mail Jail and the mailbox data on an encrypted ZFS dataset (AES256) that's manually unlocked with my passphrase after rebooting the system. Backups are done via ZFS send/recv to by backup server (-w for raw send to ensure, data is encrypted at rest)
- SPF: ✅
- DKIM Signing: ✅
- DMARC Reporting: ✅
- E-Mail delivery to major providers: ✅
- IPv6 working and actually being used: ✅
All working perfectly well. In about a week, I'll decomission the old Debian based system, that I used since 2017!
