Mailman3 vs Schleuder
A side-by-side comparison of two self-hosted apps from related categories — licensing, setup difficulty, resource needs, and what each one replaces.
Not the right match-up?
| Feature | Mailman3 | Schleuder |
|---|---|---|
| Category | Chat & Communication | Mail Servers |
| License | AGPL-3.0-or-later | GPL-3.0 |
| Language | Ruby | |
| Setup difficulty | Medium | Hard |
| Min. RAM | 800 MB | 256 MB |
| Deployment | bare-metal | bare-metal, source |
| GitHub stars | — | ★ 100 |
| First released | 2023 | 2009 |
| Replaces | Google Groups | Google Groups |
Why pick each one
Choose Schleuder if…
- Released under the GPL-3.0 license
- Written in Ruby
- Tiny footprint — runs in 256 MB RAM
Frequently asked questions
Is Mailman3 or Schleuder better?
Neither is universally better. Schleuder has the larger community, while Mailman3 is simpler to set up (medium difficulty). Choose based on the comparison table above and your own setup.
Are Mailman3 and Schleuder free and open-source?
Yes. Mailman3 is licensed under AGPL-3.0-or-later and Schleuder under GPL-3.0. Both can be self-hosted at no software cost.
Can I run Mailman3 and Schleuder with Docker?
Mailman3: check the project docs for container support. Schleuder: check the project docs for container support.