Mail-in-a-BoxvsZero
Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.
| Mail-in-a-Box | Zero | |
|---|---|---|
| Score | 72/100 | 56/100 |
| Rank in category | #3 of 16 in Mail Server | #22 of 120 in AI Assistant |
| GitHub stars | 15 450 | 1 768 |
| Stars, last 30 days | +32 | — |
| Stable releases, 12 months | 4 | 10 |
| Latest release | v77 · 26 Sept 2026 | v0.11.0 · 16 Oct 2026 |
| Setup | Moderate | Moderate |
| Official Docker image | No | No |
| License | CC0-1.0 | MIT |
| Main language | Python | Go |
Which one should you pick?
Mail-in-a-Box scores 72/100 against 56/100 for Zero, so it is the safer default.
Zero ships more often: 10 stable releases in the past year, against 4 for Mail-in-a-Box.
Mail-in-a-Box is growing faster right now (+32 stars in 30 days).
Mail-in-a-Box details →Zero details →
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