kubovsStalwart Mail Server
Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.
| kubo | Stalwart Mail Server | |
|---|---|---|
| Score | 71/100 | 78/100 |
| Rank in category | #5 of 86 in File Sharing | #2 of 16 in Mail Server |
| GitHub stars | 17 160 | 15 465 |
| Stars, last 30 days | +21 | +681 |
| Stable releases, 12 months | 7 | 31 |
| Latest release | v0.43.1 · 14 Sept 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 | Go | Rust |
Which one should you pick?
Stalwart Mail Server scores 78/100 against 71/100 for kubo, so it is the safer default.
Stalwart Mail Server ships more often: 31 stable releases in the past year, against 7 for kubo.
Stalwart Mail Server is growing faster right now (+681 stars in 30 days).
kubo details →Stalwart Mail Server details →