Compare software

docker-mailserveriRedMail
Free

Free and open source.

 Free

Free and open source, self-hosted.

Linux, Self-hosted Linux, Self-hosted
  • Whole mail stack in one container
  • Built-in antispam and antivirus
  • Long-established project with broad Linux and BSD distribution support
  • Automates installation of a full mail stack in one script
  • No webmail or graphical admin interface
  • Needs Docker and DNS knowledge to run well
  • Requires server administration skills to deploy and maintain
  • Text-based installer is less approachable than fully containerized alternatives
Self-hosted Self-hosted
Open source Open source
License not stated License not stated
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 September 22, 2026

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