Decision Workspace
postmark vs lettermint vs polymail
Side-by-side comparison of Rust crates
57
postmark
stablev2.0.1
Postmark rust client
58
lettermint
experimentalv0.3.2
Lettermint email service client
57
polymail
experimentalv0.1.6
Unified email sending interface for multiple providers
Core Metrics
| postmark | lettermint | polymail | |
|---|---|---|---|
| Health Score | 57 | 58 | 57 |
| Total Downloads | 215.5K | 556 | 406 |
| 30d Downloads | 7.2K | 0 | 0 |
| Dependents | 15 | 7 | 0 |
| Releases | 29 | 8 | 7 |
| Last Updated | 46d ago | 8d ago | 4d ago |
| Age | 5y | 3m | 3m |
Health Breakdown
postmark
Maintenance
15
Quality
14
Community
9
Popularity
6
Documentation
13
lettermint
Maintenance
18
Quality
16
Community
8
Popularity
3
Documentation
13
polymail
Maintenance
20
Quality
15
Community
6
Popularity
3
Documentation
13
Technical Details
| postmark | lettermint | polymail | |
|---|---|---|---|
| Version | 2.0.1 | 0.3.2 | 0.1.6 |
| Stable (≥1.0) | ✓ Yes | ✗ No | ✗ No |
| License | MIT OR Apache-2.0 | MIT OR Apache-2.0 | MIT OR Apache-2.0 |
| Dependencies | 13 | 15 | 11 |
| Crate Size | 65KB | 41KB | 39KB |
| Features | 5 | 11 | 8 |
| Yanked % | 10.3% | 0.0% | 0.0% |
| Edition | 2024 | 2024 | 2024 |
| MSRV | — | — | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •lettermint leads with a health score of 58/100, but none of the options score above 80.
- •postmark has the most downloads (215.5K), suggesting wider adoption.
- •lettermint, polymail are pre-1.0 — API may change.