Email Detective for Gmail: Identify ESPs & Check Authentication
1,000 users Rated 4.95 from 19 ratings Last updated 10 Nov 2026
By Tooltester
Live in the Chrome Web Store
jmflpchhakbogamlbfmlkglnpgfbhidl
Search Google ↗
Last checked 11 Nov 2026, 05:47 UTC
The listing
What the Chrome Web Store shows, as of the last check
See which ESP sent any email in Gmail. Detects 200+ providers and shows SPF/DKIM/DMARC authentication.Summary from the listing
- Developer
- Tooltester
- Enhanced Safe Browsing
- Trusted. What this means →
- Category
- Productivity › Communication
- First published
- 23 Mar 2026
- Last updated
- 10 Nov 2026
- Version
2.1.334- Size
- 654 KiB
- Minimum Chrome
- 88
- Languages
1 language
English
- Website
- emailtooltester.com
- Support page
- https://www.emailtooltester.com/en/contact/
Show the numbers
| 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
New version
2.1.334, replacing2.1.321.New version
2.1.321, replacing2.1.319.New version
2.1.319, replacing2.1.316.New version
2.1.316, replacing2.1.315.New version
2.1.315, replacing2.1.313.New version
2.1.313, replacing2.1.310.New version
2.1.310, replacing2.1.308.New version
2.1.308, replacing2.1.303.New version
2.1.303, replacing2.1.302.New version
2.1.302, replacing2.1.272.New version
2.1.272, replacing2.1.271.Moved from Tools to Communication.
New version
2.1.271, replacing2.1.263.New version
2.1.263, replacing2.1.257.New version
2.1.257, replacing2.1.253.New version
2.1.253, replacing2.1.246.New version
2.1.246, replacing2.1.243.New version
2.1.243, replacing2.1.237.New version
2.1.237, replacing2.1.233.New version
2.1.233, replacing2.1.216.New version
2.1.216, replacing2.1.211.The summary on the listing changed.
New version
2.1.211, replacing2.1.194.New version
2.1.194, replacing2.1.181.New version
2.1.181, replacing2.1.176.New version
2.1.176, replacing2.1.168.New version
2.1.168, replacing2.1.160.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 27 Sep 2026.
We know contact emails only by a keyed hash, so they're never shown. Recent account and contact changes →
What it can access
From the extension's manifest, in plain language
scriptingRun scripts on sites it can reachstorageSave settings and data in your browser
downloadsManage your downloadshttps://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 | 125 | 5.00 | 2 | Tools |
| Sender Icons for Outlook: Spot important emails faster, click fewer ads | 11 | – | – | Communication |
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 11 Nov 2026, 05:47 UTC; next check around 18 Nov 2026.
Cite this page
Citation
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}
}The data is free to reuse under CC BY 4.0.
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