Chatmail Relay vs Tigase XMPP Server
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?
Chatmail Relay
Minimal email server tuned for Delta Chat messaging
VS
Tigase XMPP Server
Highly scalable XMPP/Jabber messaging server
| Feature | Chatmail Relay | Tigase XMPP Server |
|---|---|---|
| Category | Chat & Communication | Matrix & XMPP |
| License | MPL-2.0 | AGPL-3.0 |
| Language | Python | Java |
| Setup difficulty | Medium | Hard |
| Min. RAM | 512 MB | 1,024 MB |
| Deployment | docker, bare-metal | docker, bare-metal, binary |
| GitHub stars | ★ 476 | ★ 358 |
| First released | 2023 | 2004 |
| Replaces | WhatsApp, Signal | Slack, WhatsApp |
Why pick each one
Choose Tigase XMPP Server if…
- Released under the AGPL-3.0 license
- First-class Docker support for quick deployment
- Written in Java
Frequently asked questions
Is Chatmail Relay or Tigase XMPP Server better?
Chatmail Relay is the stronger all-round pick: it has both the larger community and the simpler medium setup. Consider Tigase XMPP Server if its specific feature set fits your needs better.
Are Chatmail Relay and Tigase XMPP Server free and open-source?
Yes. Chatmail Relay is licensed under MPL-2.0 and Tigase XMPP Server under AGPL-3.0. Both can be self-hosted at no software cost.
Can I run Chatmail Relay and Tigase XMPP Server with Docker?
Chatmail Relay: yes. Tigase XMPP Server: yes.