Which one AI picks, and when.
Data as of Aug 13, 2026 · Based on 43 AI claims comparing the two · See how Parse measures this
Head to head
The two are furthest apart on reach, where Mailgun leads by 3 points.
| Measure |  Mailgun |  Postmark |
|---|---|---|
| Parse Score | 87 |
| 86 |
| Strength | 75 | 76 |
|---|
| Reach (widest gap) | 69 | 66 |
|---|
| Authority | 65 | 63 |
|---|
