# Mail-in-a-Box vs Versity S3 Gateway

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

| | Mail-in-a-Box | Versity S3 Gateway |
|---|---|---|
| Score | 72/100 ✓ | 66/100 |
| Rank in category | #3 of 16 in Mail Server | #2 of 5 in Storage |
| GitHub stars | 15 447 ✓ | 3 079 |
| Stars, last 30 days | +29 | +139 ✓ |
| Stable releases, 12 months | 4 | 14 ✓ |
| Latest release | v77 · 26 Sept 2026 | v1.10.0 · 22 Oct 2026 ✓ |
| Setup | Moderate | Easy ✓ |
| Official Docker image | No | Yes ✓ |
| License | CC0-1.0 | Apache-2.0 |
| Main language | Python | Go |

## Which one should you pick?

Mail-in-a-Box scores 72/100 against 66/100 for Versity S3 Gateway, so it is the safer default.

Versity S3 Gateway ships more often: 14 stable releases in the past year, against 4 for Mail-in-a-Box.

If you want the quickest setup, Versity S3 Gateway is easier to run; Mail-in-a-Box needs more configuration.

Versity S3 Gateway is growing faster right now (+139 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)
- [Versity S3 Gateway](https://selfhost.directory/project/versity-s3-gateway) (markdown: https://selfhost.directory/project/versity-s3-gateway.md)

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Source: https://selfhost.directory/compare/mail-in-a-box-vs-versity-s3-gateway