Docker Mailserver vs Betterbird

A side-by-side comparison of two self-hosted mail servers options — licensing, setup difficulty, resource needs, and what each one replaces.

Not the right match-up?
FeatureDocker MailserverBetterbird
CategoryMail ServersMail Servers
LicenseMITMPL-2.0
LanguageShellShell
Setup difficultyMediumEasy
Min. RAM2,048 MB256 MB
Deploymentdockerbinary, source
GitHub stars★ 18,682★ 948
First released20152022
ReplacesGoogle Workspace, Microsoft 365Microsoft Outlook

Why pick each one

Choose Docker Mailserver if…

  • Reproducible, version-controllable config
  • Lightweight
Docker Mailserver details

Choose Betterbird if…

  • Released under the MPL-2.0 license
  • Easy to set up — beginner-friendly
  • Written in Shell
  • Tiny footprint — runs in 256 MB RAM
Betterbird details

Frequently asked questions

Is Docker Mailserver or Betterbird better?

Neither is universally better. Docker Mailserver has the larger community, while Betterbird is simpler to set up (easy difficulty). Choose based on the comparison table above and your own setup.

Are Docker Mailserver and Betterbird free and open-source?

Yes. Docker Mailserver is licensed under MIT and Betterbird under MPL-2.0. Both can be self-hosted at no software cost.

Can I run Docker Mailserver and Betterbird with Docker?

Docker Mailserver: yes. Betterbird: check the project docs for container support.

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