listmonk vs Simple NixOS Mailserver

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?
FeaturelistmonkSimple NixOS Mailserver
CategoryMail ServersMail Servers
LicenseAGPL-3.0GPL-3.0
LanguageGoNix
Setup difficultyEasyMedium
Min. RAM512 MB512 MB
Deploymentdocker, binary, sourcebare-metal
GitHub stars★ 22,670★ 307
First released20202019
ReplacesMailchimp, Sendinblue

Why pick each one

Choose listmonk if…

  • Fast and scalable
  • Modern admin UI
listmonk details

Choose Simple NixOS Mailserver if…

  • Released under the GPL-3.0 license
  • Written in Nix
  • Lightweight — runs in 512 MB RAM
Simple NixOS Mailserver details

Frequently asked questions

Is listmonk or Simple NixOS Mailserver better?

listmonk is the stronger all-round pick: it has both the larger community and the simpler easy setup. Consider Simple NixOS Mailserver if its specific feature set fits your needs better.

Are listmonk and Simple NixOS Mailserver free and open-source?

Yes. listmonk is licensed under AGPL-3.0 and Simple NixOS Mailserver under GPL-3.0. Both can be self-hosted at no software cost.

Can I run listmonk and Simple NixOS Mailserver with Docker?

listmonk: yes. Simple NixOS Mailserver: check the project docs for container support.

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