Decision Workspace
sendout vs lettre vs mml-lib
Side-by-side comparison of Rust crates
38
sendout
experimentalv0.2.2
A library for sending emails from you application
65
lettre
growingv0.11.19
Email client
62
mml-lib
stablev1.1.2
Rust implementation of the Emacs MIME message Meta Language (MML)
Core Metrics
| sendout | lettre | mml-lib | |
|---|---|---|---|
| Health Score | 38 | 65 | 62 |
| Total Downloads | 57 | 8.0M | 59.8K |
| 30d Downloads | 5 | 879.7K | 6.8K |
| Dependents | 0 | 3.5K | 59 |
| Releases | 4 | 61 | 31 |
| Last Updated | 41d ago | 170d ago | 36d ago |
| Age | 2m | 10y 5m | 2y 7m |
Health Breakdown
sendout
Maintenance
10
Quality
9
Community
5
Popularity
2
Documentation
12
lettre
Maintenance
11
Quality
14
Community
20
Popularity
8
Documentation
12
mml-lib
Maintenance
17
Quality
15
Community
11
Popularity
6
Documentation
13
Technical Details
| sendout | lettre | mml-lib | |
|---|---|---|---|
| Version | 0.2.2 | 0.11.19 | 1.1.2 |
| Stable (≥1.0) | ✗ No | ✗ No | ✓ Yes |
| License | MPL-2.0 | MIT | MIT |
| Dependencies | 18 | 47 | 18 |
| Crate Size | 43KB | 159KB | 67KB |
| Features | 6 | 25 | 15 |
| Yanked % | 25.0% | 0.0% | 41.9% |
| Edition | 2024 | 2021 | 2021 |
| MSRV | 1.93.0 | 1.74 | — |
| Owners | 1 | 2 (team) | 1 |
Links
Quick Verdict
- •lettre leads with a health score of 65/100, but none of the options score above 80.
- •lettre is depended on by 3.5K crates — strongest ecosystem trust.
- •sendout, lettre are pre-1.0 — API may change.