Stalwart Mail ServervsUnregistry
Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.
| Stalwart Mail Server | Unregistry | |
|---|---|---|
| Score | 79/100 | 63/100 |
| Rank in category | #2 of 16 in Mail Server | #4 of 12 in Container Registry |
| GitHub stars | 15 482 | 4 888 |
| Stars, last 30 days | +679 | +21 |
| Stable releases, 12 months | 31 | 4 |
| Latest release | v1.0.1 · 28 Oct 2026 | v0.4.3 · 12 Jun 2026 |
| Setup | Moderate | Easy |
| Official Docker image | Yes | Yes |
| License | AGPL-3.0-only AND LicenseRef-SEL | Apache-2.0 |
| Main language | Rust | Go |
Which one should you pick?
Stalwart Mail Server scores 79/100 against 63/100 for Unregistry, so it is the safer default.
Stalwart Mail Server ships more often: 31 stable releases in the past year, against 4 for Unregistry.
If you want the quickest setup, Unregistry is easier to run; Stalwart Mail Server needs more configuration.
Stalwart Mail Server is growing faster right now (+679 stars in 30 days).
Stalwart Mail Server details →Unregistry details →
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