SHSelfHostIndex

Mailman 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?
MA Mailman Free software for managing electronic mailing lists VS HY HyperKitty Web archive interface for Mailman 3 mailing lists
FeatureMailmanHyperKitty
Deploy effortUnder-an-hour setupUnder-an-hour setup
CategoryMail ServersMail Servers
LicenseGPL-3.0GPL-3.0
LanguagePythonPython
Setup difficultyHardHard
Min. RAM1,024 MB1,024 MB
Deploymentdocker, bare-metal, sourcedocker, source
GitHub stars★ 400★ 200
First released19982014
ReplacesGoogle GroupsGoogle Groups

What are Mailman and HyperKitty?

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

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

Mailman vs HyperKitty: key differences

Both projects are written in Python. Mailman is the more established project (first released 1998), while HyperKitty arrived in 2014. Mailman has the considerably larger community, at 400 GitHub stars versus 200.

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 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 Mailman or HyperKitty 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 HyperKitty free and open-source?

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

Can I run Mailman and HyperKitty with Docker?

Mailman: yes. HyperKitty: yes.

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