Compare software

docker-mailserverMailcow
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
  • Docker packaging makes deployment and updates more manageable
  • Includes a full web admin panel and SOGo webmail out of the box
  • No webmail or graphical admin interface
  • Needs Docker and DNS knowledge to run well
  • Requires Docker and server administration knowledge to run
  • Resource requirements are higher than a single lightweight mail daemon
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.