Decision Workspace
jmap-server vs mailrs-jmap vs jmap-types
Side-by-side comparison of Rust crates
49
jmap-server
experimentalv0.1.2
Backend-agnostic JMAP server framework (RFC 8620): parsing, ResultReference resolution, and Dispatcher
55
mailrs-jmap
experimentalv1.1.2
JMAP (RFC 8620 + RFC 8621) server-side dispatcher and method handlers — framework-agnostic, BYO mail store via the MailStore trait.
53
jmap-types
experimentalv0.1.1
Shared JMAP wire types (RFC 8620) for the jmap-* crate family
Core Metrics
| jmap-server | mailrs-jmap | jmap-types | |
|---|---|---|---|
| Health Score | 49 | 55 | 53 |
| Total Downloads | 118 | 108 | 228 |
| 30d Downloads | 0 | 0 | 0 |
| Dependents | 16 | 0 | 54 |
| Releases | 3 | 7 | 2 |
| Last Updated | 12d ago | 3d ago | 12d ago |
| Age | 24d | 5d | 24d |
Health Breakdown
jmap-server
Maintenance
13
Quality
13
Community
9
Popularity
2
Documentation
12
mailrs-jmap
Maintenance
19
Quality
15
Community
6
Popularity
2
Documentation
13
jmap-types
Maintenance
13
Quality
14
Community
11
Popularity
3
Documentation
12
Technical Details
| jmap-server | mailrs-jmap | jmap-types | |
|---|---|---|---|
| Version | 0.1.2 | 1.1.2 | 0.1.1 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✗ No |
| License | MIT OR Apache-2.0 | Apache-2.0 OR MIT | MIT OR Apache-2.0 |
| Dependencies | 7 | 6 | 3 |
| Crate Size | 55KB | 49KB | 38KB |
| Features | 0 | 0 | 0 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | 2024 | 2021 |
| MSRV | 1.88 | — | 1.88 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •mailrs-jmap leads with a health score of 55/100, but none of the options score above 80.
- •jmap-types has the most downloads (228), suggesting wider adoption.
- •jmap-server, jmap-types are pre-1.0 — API may change.