listmonk vs Roundcube

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?
FeaturelistmonkRoundcube
CategoryMail ServersMail Servers
LicenseAGPL-3.0GPL-3.0
LanguageGoPHP
Setup difficultyEasyEasy
Min. RAM512 MB256 MB
Deploymentdocker, binary, sourcedocker, bare-metal, source
GitHub stars★ 22,670★ 7,118
First released20202008
ReplacesMailchimp, SendinblueGmail, Outlook Web

Why pick each one

Choose listmonk if…

  • Fast and scalable
  • Modern admin UI
listmonk details

Choose Roundcube if…

  • Mature and stable
  • Widely supported
Roundcube details

Frequently asked questions

Is listmonk or Roundcube better?

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

Are listmonk and Roundcube free and open-source?

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

Can I run listmonk and Roundcube with Docker?

listmonk: yes. Roundcube: yes.

Related comparisons