Stalwart Mail ServervsZed Attack Proxy (ZAP)
Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.
| Stalwart Mail Server | Zed Attack Proxy (ZAP) | |
|---|---|---|
| Score | 78/100 | 80/100 |
| Rank in category | #2 of 16 in Mail Server | #4 of 78 in Security |
| GitHub stars | 15 462 | 16 058 |
| Stars, last 30 days | +678 | +243 |
| Stable releases, 12 months | 31 | 31 |
| Latest release | v1.0.1 · 28 Oct 2026 | w2026-10-23 · 23 Oct 2026 |
| Setup | Moderate | Easy |
| Official Docker image | Yes | Yes |
| License | AGPL-3.0-only AND LicenseRef-SEL | Apache-2.0 |
| Main language | Rust | Java |
Which one should you pick?
Zed Attack Proxy (ZAP) scores 80/100 against 78/100 for Stalwart Mail Server, so it is the safer default.
If you want the quickest setup, Zed Attack Proxy (ZAP) is easier to run; Stalwart Mail Server needs more configuration.
Stalwart Mail Server is growing faster right now (+678 stars in 30 days).
Stalwart Mail Server details →Zed Attack Proxy (ZAP) details →
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