PostalvsSimpleRelay
Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.
| Postal | SimpleRelay | |
|---|---|---|
| Score | 72/100 | 46/100 |
| Rank in category | #3 of 16 in Mail Server | #77 of 106 in Email |
| GitHub stars | 16 898 | 189 |
| Stars, last 30 days | +74 | — |
| Stable releases, 12 months | 3 | 2 |
| Latest release | 3.3.7 · 3 Jun 2026 | v1.1.0 · 20 Jun 2026 |
| Setup | Advanced | Moderate |
| Official Docker image | Yes | No |
| License | MIT | MIT |
| Main language | Ruby | Python |
Which one should you pick?
Postal scores 72/100 against 46/100 for SimpleRelay, so it is the safer default.
Postal ships more often: 3 stable releases in the past year, against 2 for SimpleRelay.
If you want the quickest setup, SimpleRelay is easier to run; Postal needs more configuration.
Postal is growing faster right now (+74 stars in 30 days).
Postal details →SimpleRelay details →
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