Unseal settings

Email Tracker for Gmail

Plan Free

Free — 20 of 20 sends left

resets soon

Tracking

Track new emails by default Notify me on first open Notify on every open Play sound with notification

Open detection Demo mode

Demo mode Simulate opens locally a minute or two after you send — no server needed.

Tracking endpoint URL of your pixel server. When set, Unseal embeds a 1×1 image pointing here in tracked emails.

Pro features Pro

How opens are detected

Opens are detected with an invisible image. Some inboxes preload or block images — Apple Mail Privacy Protection, for example — so treat opens as a strong signal, not proof.

Data

Clear activity history Removes all tracked emails and opens from this device.