LocustvsStalwart Mail Server
Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.
| Locust | Stalwart Mail Server | |
|---|---|---|
| Score | 78/100 | 78/100 |
| Rank in category | #1 of 10 in Testing | #2 of 16 in Mail Server |
| GitHub stars | 28 245 | 15 444 |
| Stars, last 30 days | +67 | +660 |
| Stable releases, 12 months | 20 | 30 |
| Latest release | 2.47.0 · 21 Oct 2026 | v1.0.0 · 26 Oct 2026 |
| Setup | Easy | Moderate |
| Official Docker image | Yes | Yes |
| License | MIT | AGPL-3.0-only AND LicenseRef-SEL |
| Main language | Python | Rust |
Which one should you pick?
Locust and Stalwart Mail Server score the same (78/100), so the choice comes down to the details below.
Stalwart Mail Server ships more often: 30 stable releases in the past year, against 20 for Locust.
If you want the quickest setup, Locust is easier to run; Stalwart Mail Server needs more configuration.
Stalwart Mail Server is growing faster right now (+660 stars in 30 days).
Locust details →Stalwart Mail Server details →
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