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b1gMaildocker-mailserver
Free

Free and open source under the GPL-2.0 licence.

 Free

Free and open source.

Web, Self-hosted Linux, Self-hosted
  • Runs on shared web hosting with PHP and MariaDB
  • Web admin panel for managing users and the service
  • Whole mail stack in one container
  • Built-in antispam and antivirus
  • Shared-hosting mode relies on POP3 catch-all mailboxes
  • Community site and documentation are partly in transition from the old website
  • No webmail or graphical admin interface
  • Needs Docker and DNS knowledge to run well
Self-hosted Self-hosted
Open source Open source
License: GPL-2.0 License not stated
Not stated if an account is needed No account needed
Not stated if it works offline Not stated if it works offline

Checked October 2, 2026

Checked September 24, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.