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docker-mailserverb1gMail
Free

Free and open source.

 Free

Free and open source under the GPL-2.0 licence.

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

Checked September 24, 2026

Checked October 2, 2026

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