About Mailcow
Mailcow Dockerized is a comprehensive, self-hosted mail server suite that bundles Postfix (SMTP), Dovecot (IMAP/POP3), SOGo (webmail, calendar, contacts), Rspamd (spam filtering), and ClamAV (antivirus) into a single Docker Compose stack. It includes a modern admin UI for managing domains, mailboxes, and DNS records.
With built-in DKIM, SPF, DMARC support, fail2ban protection, and automatic SSL via ACME, Mailcow is one of the most complete self-hosted email solutions available. It handles millions of mailboxes and scales horizontally.
Key Features
- Full-stack mail server suite: Postfix, Dovecot, and SOGo
- Modern web admin panel with ACME SSL automation
- Spam filtering with Rspamd and ClamAV integration
- ActiveSync and CardDAV/CalDAV for mobile device sync
Self-Hosting Notes
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