Decision Workspace
check-if-email-exists vs direct_to_mx vs smtp_send
Side-by-side comparison of Rust crates
55
check-if-email-exists
growingv0.11.7
Check if an email address exists without sending any email
53
direct_to_mx
experimentalv0.3.0
Direct-to-MX email delivery with DKIM signing, IPv4 forcing, MX fallback, bulk sending, attachments, DKIM key generation, and DNS verification
47
smtp_send
experimentalv0.1.29
SMTP email sending library with built-in DKIM signing and MX lookup support. / 支持内置 DKIM 签名和 MX 记录查询的 SMTP 邮件发送库。
Core Metrics
| check-if-email-exists | direct_to_mx | smtp_send | |
|---|---|---|---|
| Health Score | 55 | 53 | 47 |
| Total Downloads | 201.9K | 236 | 741 |
| 30d Downloads | 11.4K | 236 | 82 |
| Dependents | 53 | 0 | 24 |
| Releases | 39 | 12 | 26 |
| Last Updated | 50d ago | 24d ago | 70d ago |
| Age | 6y 5m | 25d | 3m |
Health Breakdown
check-if-email-exists
Maintenance
16
Quality
9
Community
12
Popularity
6
Documentation
12
direct_to_mx
Maintenance
17
Quality
12
Community
6
Popularity
3
Documentation
15
smtp_send
Maintenance
15
Quality
11
Community
10
Popularity
3
Documentation
8
Technical Details
| check-if-email-exists | direct_to_mx | smtp_send | |
|---|---|---|---|
| Version | 0.11.7 | 0.3.0 | 0.1.29 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | AGPL-3.0 | MIT | MulanPSL-2.0 |
| Dependencies | 26 | 12 | 31 |
| Crate Size | 610KB | 38KB | 36KB |
| Features | 0 | 0 | 1 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2018 | 2024 | 2024 |
| MSRV | — | 1.85 | — |
| Owners | 2 | 1 | 1 |
Links
Quick Verdict
- •check-if-email-exists leads with a health score of 55/100, but none of the options score above 80.