A tracking pixel or beacon is widely used in an email tracker to track an email's behaviour. Users of email tracking software can receive notifications when emails are opened, pixels or beacons are activated, and recipient data is gathered.
Email Tracking for Gmail _ OpenedOrNot by 500apps.pdf
1. Email Tracking for Gmail | OpenedOrNot by 500apps
To monitor an email's behaviour, a tracking pixel or beacon is frequently included in an email tracker. With
the use of email monitoring software, users can get alerts when emails are opened, pixels or beacons are
turned on, and recipient information is gathered.