Decision Workspace
tokio-imap vs mailrs-imap-codec vs rip-starttls
Side-by-side comparison of Rust crates
38
tokio-imap
growingv0.5.0
Tokio-based IMAP protocol (client, for now) implementation
49
mailrs-imap-codec
experimentalv1.0.0
Tokio Decoder/Encoder for the RFC 9051 IMAP wire format — handles both line mode (CRLF-terminated commands and responses) and literal mode (raw byte-counted payloads, used for APPEND, FETCH BODY[], etc.). Stateful: caller toggles literal mode with `expect_literal(size)` after parsing a `{N}` literal marker.
43
rip-starttls
growingv0.1.0
Sans I/O implementation of <https://duesee.dev/p/avoid-implementing-starttls/>
Core Metrics
| tokio-imap | mailrs-imap-codec | rip-starttls | |
|---|---|---|---|
| Health Score | 38 | 49 | 43 |
| Total Downloads | 9.5K | 600 | 35.9K |
| 30d Downloads | 0 | 0 | 2.3K |
| Dependents | 0 | 0 | 6 |
| Releases | 6 | 1 | 1 |
| Last Updated | 2383d ago | 51d ago | 584d ago |
| Age | 9y 1m | 1m | 1y 7m |
Health Breakdown
tokio-imap
Maintenance
4
Quality
13
Community
4
Popularity
5
Documentation
12
mailrs-imap-codec
Maintenance
10
Quality
17
Community
6
Popularity
3
Documentation
13
rip-starttls
Maintenance
1
Quality
16
Community
8
Popularity
5
Documentation
13
Technical Details
| tokio-imap | mailrs-imap-codec | rip-starttls | |
|---|---|---|---|
| Version | 0.5.0 | 1.0.0 | 0.1.0 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✗ No |
| License | MIT/Apache-2.0 | Apache-2.0 OR MIT | MIT |
| Dependencies | 9 | 2 | 7 |
| Crate Size | 11KB | 10KB | 13KB |
| Features | 0 | 0 | 3 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2018 | 2024 | 2021 |
| MSRV | — | — | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •mailrs-imap-codec leads with a health score of 49/100, but none of the options score above 80.
- •rip-starttls has the most downloads (35.9K), suggesting wider adoption.
- •⚠ tokio-imap, rip-starttls have not been updated in over a year.
- •tokio-imap, rip-starttls are pre-1.0 — API may change.