SafeLinevsStalwart Mail Server
Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.
| SafeLine | Stalwart Mail Server | |
|---|---|---|
| Score | 81/100 | 78/100 |
| Rank in category | #1 of 3 in Web Application Firewall | #2 of 16 in Mail Server |
| GitHub stars | 23 071 | 15 462 |
| Stars, last 30 days | +401 | +678 |
| Stable releases, 12 months | 11 | 30 |
| Latest release | v9.4.3 · 21 Oct 2026 | v1.0.0 · 26 Oct 2026 |
| Setup | Moderate | Moderate |
| Official Docker image | Yes | Yes |
| License | GPL-3.0 | AGPL-3.0-only AND LicenseRef-SEL |
| Main language | Go | Rust |
Which one should you pick?
SafeLine scores 81/100 against 78/100 for Stalwart Mail Server, so it is the safer default.
Stalwart Mail Server ships more often: 30 stable releases in the past year, against 11 for SafeLine.
SafeLine details →Stalwart Mail Server details →