Stalwart Mail ServervsThumbor
Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.
| Stalwart Mail Server | Thumbor | |
|---|---|---|
| Score | 79/100 | 72/100 |
| Rank in category | #2 of 16 in Mail Server | #2 of 13 in Image Processing |
| GitHub stars | 15 479 | 10 528 |
| Stars, last 30 days | +676 | +6 |
| Stable releases, 12 months | 31 | 1 |
| Latest release | v1.0.1 · 28 Oct 2026 | 7.8.0 · 30 May 2026 |
| Setup | Moderate | Easy |
| Official Docker image | Yes | Yes |
| License | AGPL-3.0-only AND LicenseRef-SEL | MIT |
| Main language | Rust | Python |
Which one should you pick?
Stalwart Mail Server scores 79/100 against 72/100 for Thumbor, so it is the safer default.
Stalwart Mail Server ships more often: 31 stable releases in the past year, against 1 for Thumbor.
If you want the quickest setup, Thumbor is easier to run; Stalwart Mail Server needs more configuration.
Stalwart Mail Server is growing faster right now (+676 stars in 30 days).
Stalwart Mail Server details →Thumbor details →
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