Decision Workspace
smtp vs lettre vs email-message
Side-by-side comparison of Rust crates
38
smtp
growingv0.3.2
UNMAINTAINED - Replaced by the 'lettre' crate
73
lettre
growingv0.11.22
Email client
52
email-message
experimentalv0.7.0
Typed outbound email message and address model
Core Metrics
| smtp | lettre | email-message | |
|---|---|---|---|
| Health Score | 38 | 73 | 52 |
| Total Downloads | 58.7K | 10.3M | 271 |
| 30d Downloads | 0 | 1.3M | 0 |
| Dependents | 0 | 4.6K | 27 |
| Releases | 20 | 64 | 10 |
| Last Updated | 1733d ago | 11d ago | 22d ago |
| Age | 11y 6m | 10y 7m | 2m |
Health Breakdown
smtp
Maintenance
4
Quality
14
Community
3
Popularity
6
Documentation
11
lettre
Maintenance
19
Quality
14
Community
20
Popularity
8
Documentation
12
email-message
Maintenance
12
Quality
15
Community
10
Popularity
3
Documentation
12
Technical Details
| smtp | lettre | email-message | |
|---|---|---|---|
| Version | 0.3.2 | 0.11.22 | 0.7.0 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | MIT | MIT | MIT |
| Dependencies | 9 | 46 | 12 |
| Crate Size | 21KB | 161KB | 55KB |
| Features | 1 | 26 | 6 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | — | 2024 | 2024 |
| MSRV | — | 1.85 | 1.92 |
| Owners | 1 | 2 (team) | 1 |
Links
Quick Verdict
- •lettre leads with a health score of 73/100, but none of the options score above 80.
- •lettre is depended on by 4.6K crates — strongest ecosystem trust.
- •⚠ smtp has not been updated in over a year.