Mail-in-a-BoxvsRapid Inbox
Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.
| Mail-in-a-Box | Rapid Inbox | |
|---|---|---|
| Score | 71/100 | 42/100 |
| Rank in category | #4 of 16 in Mail Server | #84 of 106 in Email |
| GitHub stars | 15 447 | 128 |
| Stars, last 30 days | +28 | +-1 |
| Stable releases, 12 months | 4 | 1 |
| Latest release | v77 · 26 Sept 2026 | v0.1.0 · 16 Aug 2026 |
| Setup | Moderate | Advanced |
| Official Docker image | No | No |
| License | CC0-1.0 | MIT |
| Main language | Python | Python |
Which one should you pick?
Mail-in-a-Box scores 71/100 against 42/100 for Rapid Inbox, so it is the safer default.
Mail-in-a-Box ships more often: 4 stable releases in the past year, against 1 for Rapid Inbox.
If you want the quickest setup, Mail-in-a-Box is easier to run; Rapid Inbox needs more configuration.
Mail-in-a-Box is growing faster right now (+28 stars in 30 days).
Mail-in-a-Box details →Rapid Inbox details →
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