Stalwart Mail ServervsWarren
Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.
| Stalwart Mail Server | Warren | |
|---|---|---|
| Score | 79/100 | 52/100 |
| Rank in category | #2 of 16 in Mail Server | #87 of 209 in AI Agents |
| GitHub stars | 15 470 | 510 |
| Stars, last 30 days | +667 | +0 |
| Stable releases, 12 months | 31 | 10 |
| Latest release | v1.0.1 · 28 Oct 2026 | v0.19.3 · 7 Oct 2026 |
| Setup | Moderate | Advanced |
| Official Docker image | Yes | Yes |
| License | AGPL-3.0-only AND LicenseRef-SEL | MIT |
| Main language | Rust | Typescript |
Which one should you pick?
Stalwart Mail Server scores 79/100 against 52/100 for Warren, so it is the safer default.
Stalwart Mail Server ships more often: 31 stable releases in the past year, against 10 for Warren.
If you want the quickest setup, Stalwart Mail Server is easier to run; Warren needs more configuration.
Stalwart Mail Server is growing faster right now (+667 stars in 30 days).
Stalwart Mail Server details →Warren details →
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