Decision Workspace
mailrs-dkim vs mail-send vs direct_to_mx
Side-by-side comparison of Rust crates
52
mailrs-dkim
experimentalv3.0.0
RFC 6376 DKIM signature verifier + signer. Parses DKIM-Signature headers, applies simple/relaxed canonicalization, verifies rsa-sha256 / ed25519-sha256 against the selector TXT record. RSA primitive backed by aws-lc-rs for ~3× faster sign vs pure-Rust. Pluggable DNS via DkimResolver trait.
63
mail-send
growingv0.6.1
E-mail delivery library with SMTP and DKIM support
52
direct_to_mx
experimentalv0.3.2
Direct-to-MX email delivery with DKIM signing, IPv4 forcing, MX fallback, bulk sending, attachments, DKIM key generation, and DNS verification
Core Metrics
| mailrs-dkim | mail-send | direct_to_mx | |
|---|---|---|---|
| Health Score | 52 | 63 | 52 |
| Total Downloads | 256 | 461.1K | 325 |
| 30d Downloads | 0 | 14.7K | 0 |
| Dependents | 7 | 189 | 0 |
| Releases | 10 | 24 | 14 |
| Last Updated | 45d ago | 9d ago | 50d ago |
| Age | 1m | 4y 1m | 4m |
Health Breakdown
mailrs-dkim
Maintenance
11
Quality
17
Community
8
Popularity
3
Documentation
13
mail-send
Maintenance
18
Quality
17
Community
11
Popularity
7
Documentation
10
direct_to_mx
Maintenance
16
Quality
12
Community
6
Popularity
3
Documentation
15
Technical Details
| mailrs-dkim | mail-send | direct_to_mx | |
|---|---|---|---|
| Version | 3.0.0 | 0.6.1 | 0.3.2 |
| Stable (≥1.0) | ✓ Yes | ✗ No | ✗ No |
| License | Apache-2.0 OR MIT | Apache-2.0 OR MIT | MIT |
| Dependencies | 14 | 15 | 11 |
| Crate Size | 64KB | 38KB | 42KB |
| Features | 2 | 12 | 0 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2024 | 2024 | 2024 |
| MSRV | — | — | 1.85 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •mail-send leads with a health score of 63/100, but none of the options score above 80.
- •mail-send is depended on by 189 crates — strongest ecosystem trust.
- •mail-send, direct_to_mx are pre-1.0 — API may change.