alot vs Stalwart Mail Server

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?
FeaturealotStalwart Mail Server
CategoryMail ServersMail Servers
LicenseGPL-3.0AGPL-3.0
LanguagePythonRust
Setup difficultyMediumMedium
Min. RAM64 MB512 MB
Deploymentbinary, sourcedocker, binary, bare-metal
GitHub stars★ 751★ 14,059
First released20112020
ReplacesMuttMicrosoft Exchange, Google Workspace

Why pick each one

Choose alot if…

  • Released under the GPL-3.0 license
  • Written in Python
  • Tiny footprint — runs in 64 MB RAM
alot details

Choose Stalwart Mail Server if…

  • Single modern binary
  • Strong security defaults
Stalwart Mail Server details

Frequently asked questions

Is alot or Stalwart Mail Server better?

Neither is universally better. Stalwart Mail Server has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.

Are alot and Stalwart Mail Server free and open-source?

Yes. alot is licensed under GPL-3.0 and Stalwart Mail Server under AGPL-3.0. Both can be self-hosted at no software cost.

Can I run alot and Stalwart Mail Server with Docker?

alot: check the project docs for container support. Stalwart Mail Server: yes.

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