Decision Workspace
mailrs-spf vs mailrs-dkim vs viaspf
Side-by-side comparison of Rust crates
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.
59
mailrs-dkim
experimentalv1.5.0
RFC 6376 DKIM signature verifier. Parses DKIM-Signature headers, applies simple/relaxed canonicalization, verifies rsa-sha256 signatures against the selector TXT record. Pluggable DNS via DkimResolver trait.
54
viaspf
growingv0.6.0
Implementation of the Sender Policy Framework (SPF) specification
Core Metrics
| mailrs-spf | mailrs-dkim | viaspf | |
|---|---|---|---|
| Health Score | 57 | 59 | 54 |
| Total Downloads | 83 | 144 | 111.8K |
| 30d Downloads | 0 | 0 | 0 |
| Dependents | 0 | 3 | 80 |
| Releases | 5 | 9 | 27 |
| Last Updated | 3d ago | 2d ago | 750d ago |
| Age | 3d | 3d | 5y 12m |
Health Breakdown
mailrs-spf
Maintenance
19
Quality
17
Community
6
Popularity
2
Documentation
13
mailrs-dkim
Maintenance
19
Quality
16
Community
8
Popularity
3
Documentation
13
viaspf
Maintenance
9
Quality
16
Community
11
Popularity
6
Documentation
12
Technical Details
| mailrs-spf | mailrs-dkim | viaspf | |
|---|---|---|---|
| Version | 1.0.4 | 1.5.0 | 0.6.0 |
| Stable (≥1.0) | ✓ Yes | ✓ Yes | ✗ No |
| License | Apache-2.0 OR MIT | Apache-2.0 OR MIT | GPL-3.0-or-later |
| Dependencies | 5 | 10 | 6 |
| Crate Size | 38KB | 57KB | 57KB |
| Features | 2 | 2 | 2 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2024 | 2024 | 2021 |
| MSRV | — | — | 1.65.0 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •mailrs-dkim leads with a health score of 59/100, but none of the options score above 80.
- •viaspf has the most downloads (111.8K), suggesting wider adoption.
- •⚠ viaspf has not been updated in over a year.
- •viaspf is pre-1.0 — API may change.