Email Tracking works by inserting a teeny tiny image, called a tracking pixel, into an email. When the receiver opens the email, their email provider has to make a request to our server to retrieve the tiny image.
Depending on the individual user settings, the mail program settings, and the device, we receive varying amounts of information about the recipient when they open the tracking image and count this as a "view." If the pixel is never opened, we receive no information at all.