docker-mailservervskeycloak
Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.
| docker-mailserver | keycloak | |
|---|---|---|
| Score | 80/100 | 86/100 |
| Rank in category | #1 of 16 in Mail Server | #1 of 40 in Authentication |
| GitHub stars | 19 703 | 37 583 |
| Stars, last 30 days | +829 | +602 |
| Stable releases, 12 months | 2 | 14 |
| Latest release | v16.0.1 · 4 Sept 2026 | 26.8.1 · 13 Oct 2026 |
| Setup | Advanced | Moderate |
| Official Docker image | Yes | Yes |
| License | MIT | Apache-2.0 |
| Main language | Shell | Java |
Which one should you pick?
keycloak scores 86/100 against 80/100 for docker-mailserver, so it is the safer default.
keycloak ships more often: 14 stable releases in the past year, against 2 for docker-mailserver.
If you want the quickest setup, keycloak is easier to run; docker-mailserver needs more configuration.
docker-mailserver details →keycloak details →
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