Know if your emails were opened
The mailcheck extension adds open tracking right inside Gmail and Zoho Mail. You choose whether to enable tracking while composing, and you get alerted the moment your email is opened, when and how many times.
You stay in control
A "Tracking ON / OFF" toggle in the compose window. You decide, email by email.
Real-time notification
A browser alert the moment a recipient opens your email.
History and statistics
A clear dashboard: sender, recipient, subject, open count and times, CSV export.
Gmail and Zoho Mail
Most tools are Gmail-only. mailcheck also works on Zoho Mail (web).
Privacy-first
Your email body is never read. Minimized, encrypted data, GDPR compliant.
By mailcheck.fr
Built by a French company, alongside our email verification service.
Three steps, no setup
Install the extension
From the Chrome Web Store, then connect your mailcheck account in one click.
Compose as usual
In Gmail or Zoho, keep "Tracking ON" on the emails you want to track.
Get alerted
A notification on open, and the full history in your dashboard.
Unlimited tracking from €9/month
Free up to 10 tracked emails per month. Unlimited Gmail + Zoho tracking for €9/month (Tracking plan), or included in any email verification plan.