OpenSlidesvsStalwart Mail Server
Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.
| OpenSlides | Stalwart Mail Server | |
|---|---|---|
| Score | 56/100 | 79/100 |
| Rank in category | #3 of 3 in Conference Management | #2 of 16 in Mail Server |
| GitHub stars | 661 | 15 470 |
| Stars, last 30 days | +15 | +667 |
| Stable releases, 12 months | 13 | 31 |
| Latest release | 4.3.6 · 20 Oct 2026 | v1.0.1 · 28 Oct 2026 |
| Setup | Advanced | Moderate |
| Official Docker image | Yes | Yes |
| License | MIT | AGPL-3.0-only AND LicenseRef-SEL |
| Main language | Shell | Rust |
Which one should you pick?
Stalwart Mail Server scores 79/100 against 56/100 for OpenSlides, so it is the safer default.
Stalwart Mail Server ships more often: 31 stable releases in the past year, against 13 for OpenSlides.
If you want the quickest setup, Stalwart Mail Server is easier to run; OpenSlides needs more configuration.
Stalwart Mail Server is growing faster right now (+667 stars in 30 days).
OpenSlides details →Stalwart Mail Server details →