Decision Workspace
samotop-with-spf vs mailrs-spf vs mailrs-inbound
Side-by-side comparison of Rust crates
44
samotop-with-spf
growingv0.13.1
Integration of SPF checks into Samotop - SMTP server and library built on async-std
57
mailrs-spf
experimentalv1.0.4
RFC 7208 Sender Policy Framework verifier. Pure-Rust evaluator with a pluggable DNS resolver trait; ships an optional hickory-resolver-backed implementation. Bounded DNS-lookup limits + loop detection per spec.
55
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
| samotop-with-spf | mailrs-spf | mailrs-inbound | |
|---|---|---|---|
| Health Score | 44 | 57 | 55 |
| Total Downloads | 14.7K | 83 | 108 |
| 30d Downloads | 0 | 0 | 0 |
| Dependents | 5 | 0 | 0 |
| Releases | 5 | 5 | 7 |
| Last Updated | 1577d ago | 3d ago | 2d ago |
| Age | 5y 6m | 3d | 4d |
Health Breakdown
samotop-with-spf
Maintenance
6
Quality
14
Community
7
Popularity
5
Documentation
12
mailrs-spf
Maintenance
19
Quality
17
Community
6
Popularity
2
Documentation
13
mailrs-inbound
Maintenance
19
Quality
15
Community
6
Popularity
2
Documentation
13
Technical Details
| samotop-with-spf | mailrs-spf | mailrs-inbound | |
|---|---|---|---|
| Version | 0.13.1 | 1.0.4 | 1.1.0 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✓ Yes |
| License | MIT OR Apache-2.0 | Apache-2.0 OR MIT | Apache-2.0 OR MIT |
| Dependencies | 7 | 5 | 4 |
| Crate Size | 4KB | 38KB | 33KB |
| Features | 0 | 2 | 0 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2018 | 2024 | 2024 |
| MSRV | — | — | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •mailrs-spf leads with a health score of 57/100, but none of the options score above 80.
- •samotop-with-spf has the most downloads (14.7K), suggesting wider adoption.
- •⚠ samotop-with-spf has not been updated in over a year.
- •samotop-with-spf is pre-1.0 — API may change.