# Stalwart Mail Server vs transfer.sh

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

| | Stalwart Mail Server | transfer.sh |
|---|---|---|
| Score | 78/100 ✓ | 69/100 |
| Rank in category | #2 of 16 in Mail Server | #9 of 86 in File Sharing |
| GitHub stars | 15 451 | 15 908 ✓ |
| Stars, last 30 days | +667 ✓ | +11 |
| Stable releases, 12 months | 30 ✓ | 0 |
| Latest release | v1.0.0 · 26 Oct 2026 | — |
| Setup | Moderate | Easy ✓ |
| Official Docker image | Yes | Yes |
| License | AGPL-3.0-only AND LicenseRef-SEL | MIT |
| Main language | Rust | Go |

## Which one should you pick?

Stalwart Mail Server scores 78/100 against 69/100 for transfer.sh, so it is the safer default.

Stalwart Mail Server ships more often: 30 stable releases in the past year, against 0 for transfer.sh.

If you want the quickest setup, transfer.sh is easier to run; Stalwart Mail Server needs more configuration.

Stalwart Mail Server is growing faster right now (+667 stars in 30 days).

## Details

- [Stalwart Mail Server](https://selfhost.directory/project/stalwart-mail-server) (markdown: https://selfhost.directory/project/stalwart-mail-server.md)
- [transfer.sh](https://selfhost.directory/project/transfersh) (markdown: https://selfhost.directory/project/transfersh.md)

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Source: https://selfhost.directory/compare/stalwart-mail-server-vs-transfersh