# Mail-in-a-Box vs Traffic Source

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

| | Mail-in-a-Box | Traffic Source |
|---|---|---|
| Score | 72/100 ✓ | 51/100 |
| Rank in category | #3 of 16 in Mail Server | #10 of 27 in Analytics |
| GitHub stars | 15 446 ✓ | 679 |
| Stars, last 30 days | +27 ✓ | +0 |
| Stable releases, 12 months | 4 ✓ | 0 |
| Latest release | v77 · 26 Sept 2026 | — |
| Setup | Moderate | Moderate ✓ |
| Official Docker image | No | No |
| License | CC0-1.0 | MIT |
| Main language | Python | JavaScript |

## Which one should you pick?

Mail-in-a-Box scores 72/100 against 51/100 for Traffic Source, so it is the safer default.

Mail-in-a-Box ships more often: 4 stable releases in the past year, against 0 for Traffic Source.

Mail-in-a-Box is growing faster right now (+27 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)
- [Traffic Source](https://selfhost.directory/project/traffic-source) (markdown: https://selfhost.directory/project/traffic-source.md)

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