Decision Workspace
jmap-server vs mailrs-jmap vs jmap-types
Side-by-side comparison of Rust crates
50
jmap-server
experimentalv0.1.3
Backend-agnostic JMAP server framework (RFC 8620): parsing, ResultReference resolution, and Dispatcher
54
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.
52
jmap-types
experimentalv0.1.2
Shared JMAP wire types (RFC 8620) for the jmap-* crate family
Core Metrics
| jmap-server | mailrs-jmap | jmap-types | |
|---|---|---|---|
| Health Score | 50 | 54 | 52 |
| Total Downloads | 289 | 689 | 713 |
| 30d Downloads | 0 | 0 | 0 |
| Dependents | 24 | 0 | 83 |
| Releases | 4 | 7 | 3 |
| Last Updated | 39d ago | 51d ago | 39d ago |
| Age | 2m | 1m | 2m |
Health Breakdown
jmap-server
Maintenance
12
Quality
13
Community
10
Popularity
3
Documentation
12
mailrs-jmap
Maintenance
16
Quality
16
Community
6
Popularity
3
Documentation
13
jmap-types
Maintenance
12
Quality
14
Community
11
Popularity
3
Documentation
12
Technical Details
| jmap-server | mailrs-jmap | jmap-types | |
|---|---|---|---|
| Version | 0.1.3 | 1.1.2 | 0.1.2 |
| 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 | 89KB | 49KB | 50KB |
| 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 54/100, but none of the options score above 80.
- •jmap-types has the most downloads (713), suggesting wider adoption.
- •jmap-server, jmap-types are pre-1.0 — API may change.