Decision Workspace
vsmtp-auth vs mail-auth vs email-auth
Side-by-side comparison of Rust crates
59
vsmtp-auth
growingv2.2.1
Next-gen MTA. Secured, Faster and Greener
56
mail-auth
growingv0.7.5
DKIM, ARC, SPF and DMARC library for Rust
46
email-auth
experimentalv0.1.2
Email authentication library: SPF, DKIM, DMARC, ARC, BIMI
Core Metrics
| vsmtp-auth | mail-auth | email-auth | |
|---|---|---|---|
| Health Score | 59 | 56 | 46 |
| Total Downloads | 50.8K | 340.7K | 36 |
| 30d Downloads | 199 | 12.8K | 25 |
| Dependents | 125 | 25 | 0 |
| Releases | 36 | 26 | 3 |
| Last Updated | 1092d ago | 96d ago | 5d ago |
| Age | 3y 7m | 3y 3m | 1m |
Health Breakdown
vsmtp-auth
Maintenance
7
Quality
18
Community
13
Popularity
6
Documentation
15
mail-auth
Maintenance
15
Quality
14
Community
10
Popularity
7
Documentation
10
email-auth
Maintenance
14
Quality
11
Community
6
Popularity
2
Documentation
13
Technical Details
| vsmtp-auth | mail-auth | email-auth | |
|---|---|---|---|
| Version | 2.2.1 | 0.7.5 | 0.1.2 |
| Stable (≥1.0) | ✓ Yes | ✗ No | ✗ No |
| License | GPL-3.0-only | Apache-2.0 OR MIT | MIT OR Apache-2.0 |
| Dependencies | 19 | 22 | 12 |
| Crate Size | 24KB | 177KB | 116KB |
| Features | 1 | 6 | 0 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | 2024 | 2024 |
| MSRV | 1.66.1 | — | — |
| Owners | 2 | 1 | 1 |
Links
Quick Verdict
- •vsmtp-auth leads with a health score of 59/100, but none of the options score above 80.
- •mail-auth has the most downloads (340.7K), suggesting wider adoption.
- •vsmtp-auth is depended on by 125 crates — strongest ecosystem trust.
- •⚠ vsmtp-auth has not been updated in over a year.
- •mail-auth, email-auth are pre-1.0 — API may change.