docker-mailservervsmCaptcha
Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.
| docker-mailserver | mCaptcha | |
|---|---|---|
| Score | 80/100 | 55/100 |
| Rank in category | #1 of 16 in Mail Server | #32 of 78 in Security |
| GitHub stars | 19 704 | 2 498 |
| Stars, last 30 days | +830 | +5 |
| Stable releases, 12 months | 2 | 0 |
| Latest release | v16.0.1 · 4 Sept 2026 | — |
| Setup | Advanced | Moderate |
| Official Docker image | Yes | Yes |
| License | MIT | AGPL-3.0 |
| Main language | Shell | Rust |
Which one should you pick?
docker-mailserver scores 80/100 against 55/100 for mCaptcha, so it is the safer default.
docker-mailserver ships more often: 2 stable releases in the past year, against 0 for mCaptcha.
If you want the quickest setup, mCaptcha is easier to run; docker-mailserver needs more configuration.
docker-mailserver is growing faster right now (+830 stars in 30 days).
docker-mailserver details →mCaptcha details →
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