Decision Workspace
gossan-dns vs dmarcguard vs mailrs-postmaster
Side-by-side comparison of Rust crates
42
gossan-dns
experimentalv0.3.2
DNS security scanner — SPF/DMARC/DKIM email auth, zone transfer (AXFR), subdomain takeover, CAA/NS posture — part of the security research ecosystem
50
dmarcguard
experimentalv0.0.2
Official Rust SDK for the DMARCguard API (https://dmarcguard.io) - DMARC, SPF, and DKIM monitoring and reporting.
50
mailrs-postmaster
experimentalv1.0.1
Email-domain DNS health checks: MX, SPF, DKIM, DMARC, MTA-STS, TLS-RPT, BIMI, DANE, PTR — async, zero I/O outside the resolver.
Core Metrics
| gossan-dns | dmarcguard | mailrs-postmaster | |
|---|---|---|---|
| Health Score | 42 | 50 | 50 |
| Total Downloads | 64 | 27 | 34 |
| 30d Downloads | 0 | 0 | 0 |
| Dependents | 3 | 0 | 0 |
| Releases | 4 | 2 | 2 |
| Last Updated | 10d ago | 35d ago | 4d ago |
| Age | 1m | 1m | 5d |
Health Breakdown
gossan-dns
Maintenance
12
Quality
10
Community
8
Popularity
2
Documentation
10
dmarcguard
Maintenance
12
Quality
15
Community
6
Popularity
2
Documentation
15
mailrs-postmaster
Maintenance
14
Quality
15
Community
6
Popularity
2
Documentation
13
Technical Details
| gossan-dns | dmarcguard | mailrs-postmaster | |
|---|---|---|---|
| Version | 0.3.2 | 0.0.2 | 1.0.1 |
| Stable (≥1.0) | ✗ No | ✗ No | ✓ Yes |
| License | MIT | Apache-2.0 | Apache-2.0 OR MIT |
| Dependencies | 11 | 0 | 7 |
| Crate Size | 44KB | 8KB | 33KB |
| Features | 6 | 0 | 0 |
| Yanked % | 25.0% | 0.0% | 0.0% |
| Edition | 2021 | 2021 | 2024 |
| MSRV | — | 1.75 | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •dmarcguard leads with a health score of 50/100, but none of the options score above 80.
- •gossan-dns has the most downloads (64), suggesting wider adoption.
- •gossan-dns, dmarcguard are pre-1.0 — API may change.