RainbondvsStalwart Mail Server
Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.
| Rainbond | Stalwart Mail Server | |
|---|---|---|
| Score | 64/100 | 79/100 |
| Rank in category | #2 of 10 in PaaS | #2 of 16 in Mail Server |
| GitHub stars | 6 284 | 15 473 |
| Stars, last 30 days | +0 | +670 |
| Stable releases, 12 months | 10 | 31 |
| Latest release | v6.10.0-release · 27 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 | Go | Rust |
Which one should you pick?
Stalwart Mail Server scores 79/100 against 64/100 for Rainbond, so it is the safer default.
Stalwart Mail Server ships more often: 31 stable releases in the past year, against 10 for Rainbond.
Stalwart Mail Server is growing faster right now (+670 stars in 30 days).
Rainbond details →Stalwart Mail Server details →