# open·kritt vs Stalwart Mail Server

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

| | open·kritt | Stalwart Mail Server |
|---|---|---|
| Score | 62/100 | 79/100 ✓ |
| Rank in category | #24 of 78 in Security | #2 of 16 in Mail Server |
| GitHub stars | 2 379 | 15 479 ✓ |
| Stars, last 30 days | +0 | +676 ✓ |
| Stable releases, 12 months | 5 | 31 ✓ |
| Latest release | v1.4.1 · 16 Aug 2026 | v1.0.1 · 28 Oct 2026 ✓ |
| Setup | Moderate | Moderate |
| Official Docker image | No | Yes ✓ |
| License | AGPL-3.0 | AGPL-3.0-only AND LicenseRef-SEL |
| Main language | JavaScript | Rust |

## Which one should you pick?

Stalwart Mail Server scores 79/100 against 62/100 for open·kritt, so it is the safer default.

Stalwart Mail Server ships more often: 31 stable releases in the past year, against 5 for open·kritt.

Stalwart Mail Server is growing faster right now (+676 stars in 30 days).

## Details

- [open·kritt](https://selfhost.directory/project/open-kritt) (markdown: https://selfhost.directory/project/open-kritt.md)
- [Stalwart Mail Server](https://selfhost.directory/project/stalwart-mail-server) (markdown: https://selfhost.directory/project/stalwart-mail-server.md)

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