# Postal vs windmill

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

| | Postal | windmill |
|---|---|---|
| Score | 72/100 | 77/100 ✓ |
| Rank in category | #3 of 16 in Mail Server | #6 of 32 in Workflow Automation |
| GitHub stars | 16 898 | 18 308 ✓ |
| Stars, last 30 days | +74 | +288 ✓ |
| Stable releases, 12 months | 3 | 163 ✓ |
| Latest release | 3.3.7 · 3 Jun 2026 | v1.853.0 · 28 Oct 2026 ✓ |
| Setup | Advanced | Moderate ✓ |
| Official Docker image | Yes | Yes |
| License | MIT | Other |
| Main language | Ruby | Rust |

## Which one should you pick?

windmill scores 77/100 against 72/100 for Postal, so it is the safer default.

windmill ships more often: 163 stable releases in the past year, against 3 for Postal.

If you want the quickest setup, windmill is easier to run; Postal needs more configuration.

windmill is growing faster right now (+288 stars in 30 days).

## Details

- [Postal](https://selfhost.directory/project/postal) (markdown: https://selfhost.directory/project/postal.md)
- [windmill](https://selfhost.directory/project/windmill) (markdown: https://selfhost.directory/project/windmill.md)

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Source: https://selfhost.directory/compare/postal-vs-windmill