Decision Workspace
mail-auth vs vsmtp-auth vs mailrs-inbound
Side-by-side comparison of Rust crates
62
mail-auth
growingv0.11.2
DKIM, ARC, SPF and DMARC library for Rust
59
vsmtp-auth
growingv2.2.1
Next-gen MTA. Secured, Faster and Greener
54
mailrs-inbound
experimentalv1.1.0
Composable SMTP receive pipeline framework — Stage trait + early-reject executor + pure decision logic + RFC 8601 Authentication-Results helpers. Framework-only; bring your own greylist / DKIM / virus-scan / scoring stages.
Core Metrics
| mail-auth | vsmtp-auth | mailrs-inbound | |
|---|---|---|---|
| Health Score | 62 | 59 | 54 |
| Total Downloads | 400.2K | 51.5K | 659 |
| 30d Downloads | 10.0K | 0 | 0 |
| Dependents | 63 | 125 | 0 |
| Releases | 34 | 36 | 7 |
| Last Updated | 1d ago | 1200d ago | 51d ago |
| Age | 3y 7m | 3y 11m | 1m |
Health Breakdown
mail-auth
Maintenance
20
Quality
14
Community
11
Popularity
7
Documentation
10
vsmtp-auth
Maintenance
7
Quality
18
Community
13
Popularity
6
Documentation
15
mailrs-inbound
Maintenance
16
Quality
16
Community
6
Popularity
3
Documentation
13
Technical Details
| mail-auth | vsmtp-auth | mailrs-inbound | |
|---|---|---|---|
| Version | 0.11.2 | 2.2.1 | 1.1.0 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✓ Yes |
| License | Apache-2.0 OR MIT | GPL-3.0-only | Apache-2.0 OR MIT |
| Dependencies | 30 | 19 | 4 |
| Crate Size | 298KB | 24KB | 33KB |
| Features | 11 | 1 | 0 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2024 | 2021 | 2024 |
| MSRV | — | 1.66.1 | — |
| Owners | 1 | 2 | 1 |
Links
Quick Verdict
- •mail-auth leads with a health score of 62/100, but none of the options score above 80.
- •vsmtp-auth is depended on by 125 crates — strongest ecosystem trust.
- •⚠ vsmtp-auth has not been updated in over a year.
- •mail-auth is pre-1.0 — API may change.