SHSelfHostIndex

Mailman vs Sympa

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?
MA Mailman Free software for managing electronic mailing lists VS SY Sympa Scalable mailing list management software
FeatureMailmanSympa
Deploy effortUnder-an-hour setupUnder-an-hour setup
CategoryMail ServersMail Servers
LicenseGPL-3.0GPL-2.0
LanguagePythonPerl
Setup difficultyHardHard
Min. RAM1,024 MB1,024 MB
Deploymentdocker, bare-metal, sourcedocker, bare-metal, source
GitHub stars★ 400★ 315
First released19981997
ReplacesGoogle GroupsGoogle Groups

What are Mailman and Sympa?

Mailman

GNU Mailman is the long-standing standard for running mailing lists, with version 3 offering a modern web interface and REST API. It handles list subscriptions, moderation, and archiving.

  • Mature mailing list management
  • Modern Postorius web UI
  • HyperKitty list archives
  • REST API for automation

Sympa

Sympa is a comprehensive, scalable mailing list manager widely used by universities and large organizations. It supports advanced moderation, web archives, and LDAP integration.

  • Scalable list management
  • Fine-grained moderation controls
  • Web-based list archives
  • LDAP and database integration

Mailman vs Sympa: key differences

Mailman is written in Python, while Sympa is built with Perl. Licensing differs — GPL-3.0 for Mailman versus GPL-2.0 for Sympa.

Why pick each one

Choose Mailman if…

  • Industry-standard list software
  • Strong moderation tools

Watch out for

  • Mailman 3 setup is involved
  • Multi-component architecture
Mailman details

Choose Sympa if…

  • Handles very large list deployments
  • Mature and feature-rich

Watch out for

  • Complex Perl-based setup
  • Dated interface
Sympa details

Frequently asked questions

Is Mailman or Sympa better?

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

Are Mailman and Sympa free and open-source?

Yes. Mailman is licensed under GPL-3.0 and Sympa under GPL-2.0. Both can be self-hosted at no software cost.

Can I run Mailman and Sympa with Docker?

Mailman: yes. Sympa: yes.

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