CasaOSvsPostal
Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.
| CasaOS | Postal | |
|---|---|---|
| Score | 76/100 | 72/100 |
| Rank in category | #1 of 22 in Home Server | #3 of 16 in Mail Server |
| GitHub stars | 37 394 | 16 899 |
| Stars, last 30 days | +135 | +72 |
| Stable releases, 12 months | 0 | 3 |
| Latest release | — | 3.3.7 · 3 Jun 2026 |
| Setup | Easy | Advanced |
| Official Docker image | No | Yes |
| License | Apache-2.0 | MIT |
| Main language | Go | Ruby |
Which one should you pick?
CasaOS scores 76/100 against 72/100 for Postal, so it is the safer default.
Postal ships more often: 3 stable releases in the past year, against 0 for CasaOS.
If you want the quickest setup, CasaOS is easier to run; Postal needs more configuration.
CasaOS details →Postal details →
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