Decision Workspace
postmark vs lettermint vs polymail
Side-by-side comparison of Rust crates
59
postmark
stablev1.0.0
Postmark rust client
50
lettermint
experimentalv0.2.0
Lettermint email service client
48
polymail
experimentalv0.1.0
Unified email sending interface for multiple providers
Core Metrics
| postmark | lettermint | polymail | |
|---|---|---|---|
| Health Score | 59 | 50 | 48 |
| Total Downloads | 191.2K | 33 | 9 |
| 30d Downloads | 4.1K | 35 | 9 |
| Dependents | 9 | 1 | 0 |
| Releases | 27 | 3 | 1 |
| Last Updated | 2d ago | today | today |
| Age | 4y 8m | 1d | 1d |
Health Breakdown
postmark
Maintenance
18
Quality
13
Community
9
Popularity
6
Documentation
13
lettermint
Maintenance
14
Quality
14
Community
7
Popularity
2
Documentation
13
polymail
Maintenance
13
Quality
15
Community
6
Popularity
1
Documentation
13
Technical Details
| postmark | lettermint | polymail | |
|---|---|---|---|
| Version | 1.0.0 | 0.2.0 | 0.1.0 |
| Stable (≥1.0) | ✓ Yes | ✗ No | ✗ No |
| License | MIT OR Apache-2.0 | MIT OR Apache-2.0 | MIT OR Apache-2.0 |
| Dependencies | 13 | 12 | 5 |
| Crate Size | 64KB | 31KB | 24KB |
| Features | 5 | 4 | 4 |
| Yanked % | 11.1% | 0.0% | 0.0% |
| Edition | 2024 | 2024 | 2024 |
| MSRV | — | — | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •postmark leads with a health score of 59/100, but none of the options score above 80.
- •lettermint, polymail are pre-1.0 — API may change.