Zestmail - Email Tracking for Gmail

About

Know the moment your emails get read.

Zestmail adds invisible, lightweight tracking to your outgoing Gmail messages — so you always know when someone opens your email. No more guessing whether your message was seen.

✦ FEATURES

- Open tracking — Know exactly when and how many times your email is opened
- Location & device info — City, browser, and OS for every open
- Real-time notifications — Desktop alerts the moment someone opens your email
- Side panel — Quick-glance tracking report right inside your Gmail tab
- Real-time activity feed — Live timeline of all tracking events in one place
- Dashboard & stats — Sent and opened counts with trend indicators
- Smart filtering — Automatically filters out bot prefetches and your own opens

✦ PRIVACY-FIRST

Zestmail only requests your email address for account identification — nothing else. No inbox reading, no contact scraping, no data selling. All tracking data is tied to your account and never shared with third parties. You stay in full control: toggle tracking and notifications on or off at any time.

✦ HOW IT WORKS

1. Install Zestmail and sign in with your Google account
2. Compose and send emails from Gmail as usual — tracking is added automatically
3. Open the Zestmail popup to see who opened your emails, when, and from where

✦ FREE PLAN

Up to 20 tracked emails per day with full open tracking, notifications, and side panel. No credit card required.

✦ LEARN MORE

Visit https://zestmail.app for documentation, privacy policy, and support.

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Built for Gmail. Works silently in the background. Zero setup required.