Mail-in-a-BoxvsThesys
Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.
| Mail-in-a-Box | Thesys | |
|---|---|---|
| Score | 72/100 | 41/100 |
| Rank in category | #3 of 16 in Mail Server | #5 of 5 in Research |
| GitHub stars | 15 446 | 177 |
| Stars, last 30 days | +27 | +0 |
| Stable releases, 12 months | 4 | 5 |
| Latest release | v77 · 26 Sept 2026 | v0.4.0 · 23 Sept 2026 |
| Setup | Moderate | Moderate |
| Official Docker image | No | No |
| License | CC0-1.0 | AGPL-3.0 |
| Main language | Python | Typescript |
Which one should you pick?
Mail-in-a-Box scores 72/100 against 41/100 for Thesys, so it is the safer default.
Thesys ships more often: 5 stable releases in the past year, against 4 for Mail-in-a-Box.
Mail-in-a-Box is growing faster right now (+27 stars in 30 days).
Mail-in-a-Box details →Thesys details →
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