SendForensics vs Postmastery
Side-by-side from the Top 11 ranking of The 11 Best Email Deliverability Tools. Last verified June 15, 2026.
The short answer
SendForensics ranks higher on Top 11 (#8 vs #10) for Email marketers and developers improving inbox placement rates. Offers a forensic, security-level audit of your email program's technical setup.
At a glance
| SendForensics | Postmastery | |
|---|---|---|
| Top 11 rank | #8 / The 11 Best Email Deliverability Tools | #10 / The 11 Best Email Deliverability Tools |
| Score (out of 9.4) | 7.7 | 7.2 |
| Best for | Deep technical infrastructure analysis | Expert consultancy with software |
| Pricing | $$ (From £49/mo) | $$$$ (Custom pricing) |
| HQ | London, UK | Amsterdam, Netherlands |
| Founded | 2012 | 2010 |
SendForensics
Offers a forensic, security-level audit of your email program's technical setup.
sendforensics.com/Postmastery
A specialized consultancy for complex sending infrastructures, supported by their own software.
postmastery.com/Methodology and scoring weights live at /methodology. No vendor pays for placement — see about.