Decision Workspace
mailrs-smtp-codec vs new-tokio-smtp vs sui-daemon-frame
Side-by-side comparison of Rust crates
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).
44
new-tokio-smtp
growingv0.9.1
extendible smtp implementation for tokio
53
sui-daemon-frame
experimentalv0.1.91
Async frame codec for the rkyv-over-UDS local protocol. Reads/writes `[magic 4B][len u32 LE][rkyv body]` over any tokio AsyncRead+AsyncWrite. Reusable by server, client, tests, future tools.
Core Metrics
| mailrs-smtp-codec | new-tokio-smtp | sui-daemon-frame | |
|---|---|---|---|
| Health Score | 50 | 44 | 53 |
| Total Downloads | 609 | 18.7K | 1.2K |
| 30d Downloads | 0 | 0 | 1.2K |
| Dependents | 0 | 7 | 66 |
| Releases | 2 | 9 | 66 |
| Last Updated | 50d ago | 2214d ago | today |
| Age | 1m | 7y 10m | 1m |
Health Breakdown
mailrs-smtp-codec
Maintenance
11
Quality
17
Community
6
Popularity
3
Documentation
13
new-tokio-smtp
Maintenance
4
Quality
16
Community
7
Popularity
5
Documentation
12
sui-daemon-frame
Maintenance
13
Quality
13
Community
11
Popularity
4
Documentation
12
Technical Details
| mailrs-smtp-codec | new-tokio-smtp | sui-daemon-frame | |
|---|---|---|---|
| Version | 1.0.1 | 0.9.1 | 0.1.91 |
| Stable (≥1.0) | ✓ Yes | ✗ No | ✗ No |
| License | Apache-2.0 OR MIT | MIT OR Apache-2.0 | MIT |
| Dependencies | 2 | 13 | 7 |
| Crate Size | 12KB | 72KB | 9KB |
| Features | 0 | 5 | 0 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2024 | 2018 | 2024 |
| MSRV | — | — | 1.89.0 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •sui-daemon-frame leads with a health score of 53/100, but none of the options score above 80.
- •new-tokio-smtp has the most downloads (18.7K), suggesting wider adoption.
- •⚠ new-tokio-smtp has not been updated in over a year.
- •new-tokio-smtp, sui-daemon-frame are pre-1.0 — API may change.