Is HumanLetter: Certify Your Human Touch. safe?

Medium risk

HumanLetter sends Gmail message content and metadata when it detects hidden tracking images.

When you open a Gmail message, the extension checks the message body for zero-size images that look like tracking pixels. If it finds one, it sends the message text, subject, sender, recipients, and Gmail message/thread IDs to HumanLetter's API.

Part of this rating comes from analysis signals we haven't published as detailed findings yet.

MailTrackerv3.0.4Chrome Web Store
40Risk
Who publishes it

Mail Automation, Inc. - 1 other listing from the same operator, none carrying a finding

What this publisher told the store about itself, and the other listings that told it the same thing.

Publisher
MailTracker
Declared legal entity
Mail Automation, Inc.
Registered address
2810 N Church St #50754, Wilmington, DE 19802-4447, US
Registered contact
Antoine Finkelstein

Same store account

1 other listing published from this account, 100k+ users between them, none of them carrying a finding.

Shared hosts - 1 hostname

Hostnames hardcoded in this extension that few other listings call. That can mean one operator behind both, and it can equally mean a small shared vendor, so it is context rather than a conclusion. Hosts that many listings call are left out: they are services, not connections.

go.maelle-coach.com
Also called by 1 other listing: The ultimate Gmail privacy guardian

AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.

Publishers can request a review.

What it can do

Permissions this extension asks for, as declared in version 3.0.4. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to.

  • Read and change your data on mail.google.com

    *://mail.google.com/

  • Read and change your data on app.humanletter.com

    *://app.humanletter.com/

  • Read and change your data on humanletter.com

    *://humanletter.com/

  • Show you desktop notifications

    notifications

  • Block and redirect the requests your browser makes

    declarativeNetRequest

  • Run its own code inside the pages you visit

    scripting

Where it sends data

Destinations our analysis observed HumanLetter: Certify Your Human Touch. contacting. Sending data somewhere is not a finding on its own - an extension that syncs your settings has to talk to its own server - but it is where your data can go, and who else it goes to.

  • api.humanletter.com

    HumanLetter: Certify Your Human Touch. sends data to api.humanletter.com. No other extension we have analysed sends data here.

Updated 30 September 2026hhncmpjgkacnijblmcfoammdghllhnmn