SHSelfHostIndex

Sympa vs HyperKitty

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?
SY Sympa Scalable mailing list management software VS HY HyperKitty Web archive interface for Mailman 3 mailing lists
FeatureSympaHyperKitty
Deploy effortUnder-an-hour setupUnder-an-hour setup
CategoryMail ServersMail Servers
LicenseGPL-2.0GPL-3.0
LanguagePerlPython
Setup difficultyHardHard
Min. RAM1,024 MB1,024 MB
Deploymentdocker, bare-metal, sourcedocker, source
GitHub stars★ 315★ 200
First released19972014
ReplacesGoogle GroupsGoogle Groups

What are Sympa and HyperKitty?

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

HyperKitty

HyperKitty is the official web-based archiver and interface for Mailman 3, presenting mailing-list discussions as browsable, searchable threads. It allows reading and replying to list traffic from a browser.

  • Web archive for Mailman 3
  • Threaded list browsing
  • Full-text search
  • Reply from the browser

Sympa vs HyperKitty: key differences

Sympa is written in Perl, while HyperKitty is built with Python. Licensing differs — GPL-2.0 for Sympa versus GPL-3.0 for HyperKitty. Sympa is the more established project (first released 1997), while HyperKitty arrived in 2014.

Why pick each one

Choose Sympa if…

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

Watch out for

  • Complex Perl-based setup
  • Dated interface
Sympa details

Choose HyperKitty if…

  • Released under the GPL-3.0 license
  • First-class Docker support for quick deployment
  • Written in Python
HyperKitty details

Frequently asked questions

Is Sympa or HyperKitty better?

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

Are Sympa and HyperKitty free and open-source?

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

Can I run Sympa and HyperKitty with Docker?

Sympa: yes. HyperKitty: yes.

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