# Mail-in-a-Box vs SafeLine

> Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.

| | Mail-in-a-Box | SafeLine |
|---|---|---|
| Score | 72/100 | 81/100 ✓ |
| Rank in category | #3 of 16 in Mail Server | #1 of 3 in Web Application Firewall |
| GitHub stars | 15 446 | 23 082 ✓ |
| Stars, last 30 days | +27 | +409 ✓ |
| Stable releases, 12 months | 4 | 11 ✓ |
| Latest release | v77 · 26 Sept 2026 | v9.4.3 · 21 Oct 2026 ✓ |
| Setup | Moderate | Moderate ✓ |
| Official Docker image | No | Yes ✓ |
| License | CC0-1.0 | GPL-3.0 |
| Main language | Python | Go |

## Which one should you pick?

SafeLine scores 81/100 against 72/100 for Mail-in-a-Box, so it is the safer default.

SafeLine ships more often: 11 stable releases in the past year, against 4 for Mail-in-a-Box.

SafeLine is growing faster right now (+409 stars in 30 days).

## Details

- [Mail-in-a-Box](https://selfhost.directory/project/mail-in-a-box) (markdown: https://selfhost.directory/project/mail-in-a-box.md)
- [SafeLine](https://selfhost.directory/project/safeline) (markdown: https://selfhost.directory/project/safeline.md)

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Source: https://selfhost.directory/compare/mail-in-a-box-vs-safeline