Email Detective — ESP Tracker

by EmailTooltester · crowdsourced from Email Detective users
Get Email DetectiveDetect any senderright in your inbox Gmail Outlook
1brands shown
127ESPs detected
119,425observations
557active users (30d)
Sort
Importance Alphabetical Setup score Recently added
Tech
Any AMP HTML builder BIMI
Volume
Any 10+ obs 50+ obs 100+ obs
Industry
Country
Signals
📧 Subscribers (97) 🚩 Gmail-flagged (78) 🐢 Slow delivery (75)
↺ Reset filters
Brand Marketing Other ESPs Setup Obs Last seen
EmailTooltester
emailtooltester.com ↗
 Brevo 471 Postmark 31 CleverReach 1 90 503 2026-06-29