Decision Workspace
new-tokio-smtp vs mailrs-smtp-codec vs neo-email
Side-by-side comparison of Rust crates
44
new-tokio-smtp
growingv0.9.1
extendible smtp implementation for tokio
50
mailrs-smtp-codec
experimentalv1.0.1
Tokio Decoder/Encoder for the RFC 5321 SMTP wire format — switches between line-oriented command mode (CRLF-terminated, ≤1024 octets) and DATA mode (raw bytes until CRLF.CRLF terminator). Includes optional SMTP-smuggling protection: detects bare-LF before the dot-terminator and either rejects the payload (Strict) or normalizes line endings (Permissive).
41
neo-email
growingv0.1.1
The modern way to build emails services with Rust
Core Metrics
| new-tokio-smtp | mailrs-smtp-codec | neo-email | |
|---|---|---|---|
| Health Score | 44 | 50 | 41 |
| Total Downloads | 18.7K | 609 | 2.3K |
| 30d Downloads | 0 | 0 | 0 |
| Dependents | 7 | 0 | 0 |
| Releases | 9 | 2 | 2 |
| Last Updated | 2214d ago | 50d ago | 713d ago |
| Age | 7y 10m | 1m | 1y 11m |
Health Breakdown
new-tokio-smtp
Maintenance
4
Quality
16
Community
7
Popularity
5
Documentation
12
mailrs-smtp-codec
Maintenance
11
Quality
17
Community
6
Popularity
3
Documentation
13
neo-email
Maintenance
5
Quality
16
Community
6
Popularity
4
Documentation
10
Technical Details
| new-tokio-smtp | mailrs-smtp-codec | neo-email | |
|---|---|---|---|
| Version | 0.9.1 | 1.0.1 | 0.1.1 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✗ No |
| License | MIT OR Apache-2.0 | Apache-2.0 OR MIT | MIT |
| Dependencies | 13 | 2 | 12 |
| Crate Size | 72KB | 12KB | 34KB |
| Features | 5 | 0 | 6 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2018 | 2024 | 2021 |
| MSRV | — | — | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •mailrs-smtp-codec leads with a health score of 50/100, but none of the options score above 80.
- •new-tokio-smtp has the most downloads (18.7K), suggesting wider adoption.
- •⚠ new-tokio-smtp, neo-email have not been updated in over a year.
- •new-tokio-smtp, neo-email are pre-1.0 — API may change.