# Postal vs tapflow

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

| | Postal | tapflow |
|---|---|---|
| Score | 72/100 ✓ | 55/100 |
| Rank in category | #3 of 16 in Mail Server | #4 of 10 in Testing |
| GitHub stars | 16 898 ✓ | 1 358 |
| Stars, last 30 days | +74 | — |
| Stable releases, 12 months | 3 | 10 ✓ |
| Latest release | 3.3.7 · 3 Jun 2026 | v0.30.0 · 27 Oct 2026 ✓ |
| Setup | Advanced | Moderate ✓ |
| Official Docker image | Yes | Yes |
| License | MIT | MIT |
| Main language | Ruby | Typescript |

## Which one should you pick?

Postal scores 72/100 against 55/100 for tapflow, so it is the safer default.

tapflow ships more often: 10 stable releases in the past year, against 3 for Postal.

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

Postal is growing faster right now (+74 stars in 30 days).

## Details

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

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