Mautic vs Lieer

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?
FeatureMauticLieer
CategoryMail ServersMail Servers
LicenseGPL-3.0GPL-3.0
LanguagePHPPython
Setup difficultyHardMedium
Min. RAM2,048 MB128 MB
Deploymentdocker, bare-metal, sourcebinary, source
GitHub stars★ 10,305★ 649
First released20142017
ReplacesHubSpot, Marketo, MailchimpGmail web interface

Why pick each one

Choose Mautic if…

  • Full marketing automation suite
  • Large community
Mautic details

Choose Lieer if…

  • Released under the GPL-3.0 license
  • Written in Python
  • Tiny footprint — runs in 128 MB RAM
Lieer details

Frequently asked questions

Is Mautic or Lieer better?

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

Are Mautic and Lieer free and open-source?

Yes. Mautic is licensed under GPL-3.0 and Lieer under GPL-3.0. Both can be self-hosted at no software cost.

Can I run Mautic and Lieer with Docker?

Mautic: yes. Lieer: check the project docs for container support.

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