Which one AI picks, and when.
Data as of Aug 15, 2026 · Based on 6 AI claims comparing the two · See how Parse measures this
Head to head
The two are furthest apart on authority, where Postmark leads by 32 points.
| Measure |  Postmark |  SMTP2GO |
|---|---|---|
| Parse Score | 86 |
| 64 |
| Strength | 76 | 55 |
|---|
| Reach | 66 | 52 |
|---|
| Authority (widest gap) | 63 | 31 |
|---|
