capvsStalwart Mail Server
Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.
| cap | Stalwart Mail Server | |
|---|---|---|
| Score | 79/100 | 79/100 |
| Rank in category | #1 of 12 in Video | #2 of 16 in Mail Server |
| GitHub stars | 24 023 | 15 470 |
| Stars, last 30 days | +1 250 | +667 |
| Stable releases, 12 months | 14 | 31 |
| Latest release | cap-v0.6.2 · 28 Oct 2026 | v1.0.1 · 28 Oct 2026 |
| Setup | Moderate | Moderate |
| Official Docker image | Yes | Yes |
| License | Other | AGPL-3.0-only AND LicenseRef-SEL |
| Main language | Rust | Rust |
Which one should you pick?
cap and Stalwart Mail Server score the same (79/100), so the choice comes down to the details below.
Stalwart Mail Server ships more often: 31 stable releases in the past year, against 14 for cap.
cap details →Stalwart Mail Server details →