--- title: "Email Detective for Gmail: Identify ESPs & Check Authentication – Chrome extension stats, history and permissions" description: "1,000 users, rated 4.95 by 19 people. Version 2.1.334, updated 2026-11-10. Requests 2 permissions." url: "https://extensiontracker.com/extension/jmflpchhakbogamlbfmlkglnpgfbhidl" --- # Email Detective for Gmail: Identify ESPs & Check Authentication Live in the Chrome Web Store. - Users: 1,000 - Rating: 4.95 from 19 ratings - Last checked: 2026-11-11 05:47 UTC - Users gained in 7 days: No change - Users gained in 30 days: No change (+0.0%) - Rank by users: #17,862 of 292,131 live extensions - Rank in Communication: #289 of 7,816 ## The listing What the Chrome Web Store shows, as of the last check. Summary from the listing: > See which ESP sent any email in Gmail. Detects 200+ providers and shows SPF/DKIM/DMARC authentication. - Extension ID: `jmflpchhakbogamlbfmlkglnpgfbhidl` - Developer: [Tooltester](https://extensiontracker.com/developer/u43578471b072a418d7368f1d9facebe2) - Enhanced Safe Browsing: Trusted ([what this means](https://extensiontracker.com/enhanced-safe-browsing)) - Category: [Productivity › Communication](https://extensiontracker.com/category/productivity/communication) - First published: 2026-03-23 - Last updated: 2026-11-10 - Version: `2.1.334` - Size: 654 KiB - Minimum Chrome: 88 - Languages (1): English - Website: `emailtooltester.com` - Support page: `https://www.emailtooltester.com/en/contact/` - Chrome Web Store: - View its code or download CRX: - Search Google for the ID: ## Users over time One row per check, newest first, as shown on the Chrome Web Store. | Checked | Users | Rating | Ratings | | --- | ---: | ---: | ---: | | 2026-11-11 | 1,000 | 4.95 | 19 | | 2026-11-10 | 1,000 | 4.95 | 19 | | 2026-11-09 | 1,000 | 4.95 | 19 | | 2026-11-08 | 1,000 | 4.94 | 18 | | 2026-11-07 | 1,000 | 4.94 | 17 | | 2026-11-04 | 1,000 | 4.94 | 16 | | 2026-11-02 | 1,000 | 4.94 | 16 | | 2026-10-31 | 2,000 | 4.94 | 16 | | 2026-10-29 | 2,000 | 4.94 | 16 | | 2026-10-28 | 2,000 | 4.94 | 16 | | 2026-10-27 | 2,000 | 4.94 | 16 | | 2026-10-25 | 2,000 | 4.94 | 16 | | 2026-10-24 | 1,000 | 4.94 | 16 | | 2026-10-22 | 1,000 | 4.94 | 16 | | 2026-10-21 | 1,000 | 4.94 | 16 | | 2026-10-18 | 1,000 | 4.94 | 16 | | 2026-10-16 | 1,000 | 4.94 | 16 | | 2026-10-15 | 1,000 | 4.94 | 16 | | 2026-10-13 | 1,000 | 4.94 | 16 | | 2026-10-11 | 1,000 | 4.94 | 16 | | 2026-10-08 | 1,000 | 4.93 | 15 | | 2026-10-07 | 1,000 | 4.93 | 15 | | 2026-10-06 | 1,000 | 4.93 | 15 | | 2026-09-30 | 1,000 | 4.93 | 15 | | 2026-09-29 | 1,000 | 4.93 | 15 | | 2026-09-28 | 1,000 | 4.93 | 15 | | 2026-09-27 | 1,000 | 4.93 | 15 | ## What changed Every change found on a check, newest first. - 2026-11-11: New version `2.1.334`, replacing `2.1.321`. - 2026-11-10: New version `2.1.321`, replacing `2.1.319`. - 2026-11-09: New version `2.1.319`, replacing `2.1.316`. - 2026-11-08: New version `2.1.316`, replacing `2.1.315`. - 2026-11-07: New version `2.1.315`, replacing `2.1.313`. - 2026-11-04: New version `2.1.313`, replacing `2.1.310`. - 2026-11-02: New version `2.1.310`, replacing `2.1.308`. - 2026-10-31: New version `2.1.308`, replacing `2.1.303`. - 2026-10-28: New version `2.1.303`, replacing `2.1.302`. - 2026-10-27: New version `2.1.302`, replacing `2.1.272`. - 2026-10-25: New version `2.1.272`, replacing `2.1.271`. - 2026-10-25: Moved from Tools to Communication. - 2026-10-24: New version `2.1.271`, replacing `2.1.263`. - 2026-10-22: New version `2.1.263`, replacing `2.1.257`. - 2026-10-21: New version `2.1.257`, replacing `2.1.253`. - 2026-10-18: New version `2.1.253`, replacing `2.1.246`. - 2026-10-16: New version `2.1.246`, replacing `2.1.243`. - 2026-10-15: New version `2.1.243`, replacing `2.1.237`. - 2026-10-13: New version `2.1.237`, replacing `2.1.233`. - 2026-10-11: New version `2.1.233`, replacing `2.1.216`. - 2026-10-08: New version `2.1.216`, replacing `2.1.211`. - 2026-10-08: The summary on the listing changed. - 2026-10-07: New version `2.1.211`, replacing `2.1.194`. - 2026-10-06: New version `2.1.194`, replacing `2.1.181`. - 2026-09-30: New version `2.1.181`, replacing `2.1.176`. - 2026-09-29: New version `2.1.176`, replacing `2.1.168`. - 2026-09-28: New version `2.1.168`, replacing `2.1.160`. - 2026-09-28: The summary on the listing changed. ## Developer history Moves to another publisher account and new contact emails, newest first. No move to another account and no new contact email since tracking began on 2026-09-27. We know contact emails only by a keyed hash, so they're never shown. Recent changes: [Account and contact changes](https://extensiontracker.com/owners/). ## What it can access From the extension's manifest, in plain language. ### Browser features - `scripting`: Run scripts on sites it can reach - `storage`: Save settings and data in your browser ### Asked for later, if you agree - `downloads`: Manage your downloads - `https://mail.google.com/*`: mail.google.com ## More from this developer Other extensions from the same publisher account. | Extension | Users | Rating | Ratings | Category | | --- | ---: | ---: | ---: | --- | | [Email Detective for Outlook: Identify ESPs & Check Authentication](https://extensiontracker.com/extension/lfhppcapafocegboaeaejkdamebobafo) | 125 | 5.00 | 2 | Tools | | [Sender Icons for Outlook: Spot important emails faster, click fewer ads](https://extensiontracker.com/extension/fadlcnhbikiloleedmhnlnppocoeechn) | 11 | – | – | Communication | All 3 extensions by [Tooltester](https://extensiontracker.com/developer/u43578471b072a418d7368f1d9facebe2). ## About this data Collected from the extension's public Chrome Web Store listing. It's checked every week, because it has 1,000 or more users, and again whenever a new version appears. Last checked 2026-11-11 05:47 UTC; next check around 2026-11-18. How the data is collected: . ## Cite this page Extension Tracker. “Email Detective for Gmail: Identify ESPs & Check Authentication” (jmflpchhakbogamlbfmlkglnpgfbhidl). Chrome Web Store data, last checked 2026-11-11. https://extensiontracker.com/extension/jmflpchhakbogamlbfmlkglnpgfbhidl. Accessed 2026-11-13. ```bibtex @misc{extensiontracker_jmflpchhakbogamlbfmlkglnpgfbhidl, title = {Email Detective for Gmail: Identify ESPs & Check Authentication (jmflpchhakbogamlbfmlkglnpgfbhidl)}, author = {{Extension Tracker}}, year = {2026}, note = {Chrome Web Store data, last checked 2026-11-11}, url = {https://extensiontracker.com/extension/jmflpchhakbogamlbfmlkglnpgfbhidl}, urldate = {2026-11-13} } ``` --- From Extension Tracker, a public record of the Chrome Web Store: . It isn't affiliated with Google. The data is free to reuse under CC BY 4.0 (), crediting Extension Tracker. Every page except search comes as Markdown too: add `format=md` to the address, as in `https://extensiontracker.com/extension/{id}?format=md`.