Self-hosting mail was a great run — over 10 years across multiple VPS systems — but the maintenance overhead eventually outweighed the satisfaction. Our family's domains now live on Fastmail, and I haven't looked back.
Mail cluster diagram created with draw.io. Replicated Mail stores and replicated LDAP directory as a source for any of its lookups.
- Dovecot + Xapian FTS
- Postfix
- Rspamd + DKIM + ARC
- OpenDMARC
- OpenLDAP
- Cyrus SASL
- Roundcube Webmail
Directory source LDAP Mail Schema