Extension Tracker

Mail Seen - Unlimited Email Tracker for Outlook

378 users Rated 5.00 from 6 ratings Last updated 14 Jun 2025

By Mobile Internet Limited Live in the Chrome Web Store ihcdhfhodopdlmchbjpnijehipfbnfip Last checked 27 Sep 2026, 03:02 UTC

The listing

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

Know when your emails are opened!Summary from the listing
Developer
Mobile Internet Limited
Trader status
Declared a trader under EU law
Category
Productivity › Communication
First published
29 May 2025
Last updated
14 Jun 2025
Version
1.6
Size
194 KiB
Minimum Chrome
88
Languages
1 language

English

Website
mailseen.com
Support page
https://www.mailseen.com/
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
2026-09-273785.006
Users, 7 days
–
needs a week of history
Users, 30 days
–
needs a month of history
Rank
#38,289
by users, of 264,254 extensions
In its category
#635
of 6,861 in Communication

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

Sites
  • https://authapi-f6o7ittoia-uc.a.run.app/authapi-f6o7ittoia-uc.a.run.app
  • https://outlook.live.com/outlook.live.com
  • https://outlook.office.com/outlook.office.com
  • https://outlook.office365.com/outlook.office365.com
Sites where it runs scripts
  • https://outlook.live.com/*outlook.live.com
  • https://outlook.office.com/*outlook.office.com
  • https://outlook.office365.com/*outlook.office365.com
Browser features
  • declarativeNetRequestBlock or change network requests, using rules
  • declarativeNetRequestFeedbackSee which of its network rules matched

More from this developer

Other extensions from the same publisher account

ExtensionUsersRatingRatingsCategory
Mail Seen - Unlimited Email Tracker for Gmail6,000 4.71190 Workflow & Planning
Mail Seen - Unlimited Email Tracker for Yahoo1,000 4.5221 Communication
All 3 extensions by Mobile Internet Limited →

About this data

Collected from the extension's public Chrome Web Store listing. It's checked every month, and again whenever a new version appears. Last checked 27 Sep 2026, 03:02 UTC; next check around 22 Oct 2026.

How we collect the data

Cite this page

Citation
Extension Tracker. “Mail Seen - Unlimited Email Tracker for Outlook” (ihcdhfhodopdlmchbjpnijehipfbnfip). Chrome Web Store data, last checked 2026-09-27. https://extensiontracker.com/extension/ihcdhfhodopdlmchbjpnijehipfbnfip. Accessed 2026-09-28.
BibTeX
@misc{extensiontracker_ihcdhfhodopdlmchbjpnijehipfbnfip,
  title   = {Mail Seen - Unlimited Email Tracker for Outlook (ihcdhfhodopdlmchbjpnijehipfbnfip)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-09-27},
  url     = {https://extensiontracker.com/extension/ihcdhfhodopdlmchbjpnijehipfbnfip},
  urldate = {2026-09-28}
}

The data is free to reuse under CC BY 4.0.

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