Extension Tracker

Email Detective for Gmail: Identify ESPs & Check Authentication

1,000 users Rated 4.93 from 15 ratings Last updated 26 Sep 2026

By Tooltester Live in the Chrome Web Store jmflpchhakbogamlbfmlkglnpgfbhidl Last checked 27 Sep 2026, 03:52 UTC

The listing

What the Chrome Web Store shows, as of the last check

See which ESP sent any email in Gmail. Detects 170+ providers and shows SPF/DKIM/DMARC authentication.Summary from the listing
Developer
Tooltester
Trader status
Declared a trader under EU law
Category
Productivity › Tools
First published
23 Mar 2026
Last updated
26 Sep 2026
Version
2.1.160
Size
599 KiB
Minimum Chrome
88
Languages
1 language

English

Website
emailtooltester.com
Support page
https://www.emailtooltester.com/en/contact/
Open in the Chrome Web Store ↗ Download the CRX from Google ↗
Users over time As shown on the Chrome Web Store

Tracking began on 27 Sep 2026. The chart appears after the second check.

Show the numbers
CheckedUsersRatingRatings
2026-09-271,0004.9315
Users, 7 days
–
needs a week of history
Users, 30 days
–
needs a month of history
Rank
#17,737
by users, of 264,254 extensions
In its category
#4,499
of 103,321 in Tools

What changed

Every change found on a check, newest first

No changes found since tracking began on 27 Sep 2026.

What it can access

From the extension's manifest, in plain language

Browser features
  • scriptingRun scripts on sites it can reach
  • storageSave settings and data in your browser
Asked for later, if you agree
  • downloadsManage your downloads
  • https://mail.google.com/*mail.google.com

More from this developer

Other extensions from the same publisher account

ExtensionUsersRatingRatingsCategory
Email Detective for Outlook: Identify ESPs & Check Authentication106 5.002 Tools
Sender Icons for Outlook: Spot important emails faster, click fewer ads8 –– Communication
All 3 extensions by Tooltester →

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 27 Sep 2026, 03:52 UTC; next check around 30 Sep 2026.

How we collect the data

Cite this page

Citation
Extension Tracker. “Email Detective for Gmail: Identify ESPs & Check Authentication” (jmflpchhakbogamlbfmlkglnpgfbhidl). Chrome Web Store data, last checked 2026-09-27. https://extensiontracker.com/extension/jmflpchhakbogamlbfmlkglnpgfbhidl. Accessed 2026-09-27.
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 2026-09-27},
  url     = {https://extensiontracker.com/extension/jmflpchhakbogamlbfmlkglnpgfbhidl},
  urldate = {2026-09-27}
}

The data is free to reuse under CC BY 4.0.

Browse

Top lists

Productivity

Lifestyle

Make Chrome Yours