Mail-tester vs Kickbox
Side-by-side from the Top 11 ranking of The 11 Best Email Deliverability Tools. Last verified June 15, 2026.
The short answer
Mail-tester ranks higher on Top 11 (#3 vs #4) for Email marketers and developers improving inbox placement rates. The fastest, simplest tool for a single pre-send spam check and technical audit.
At a glance
| Mail-tester | Kickbox | |
|---|---|---|
| Top 11 rank | #3 / The 11 Best Email Deliverability Tools | #4 / The 11 Best Email Deliverability Tools |
| Score (out of 9.4) | 8.8 | 8.5 |
| Best for | Quick, on-demand spam checks | Verification and deliverability suite |
| Pricing | $ (Pay-as-you-go or $50/mo) | $$ ($5 to $1000+ pay-as-you-go) |
| HQ | London, UK | Dallas, USA |
| Founded | 2014 | 2014 |
Mail-tester
The fastest, simplest tool for a single pre-send spam check and technical audit.
www.mail-tester.com/Kickbox
A strong choice for combining elite list verification with deliverability monitoring tools.
kickbox.com/Methodology and scoring weights live at /methodology. No vendor pays for placement — see about.