This information can then be used to determine the impact of a specific email campaign, as well as to feed into more detailed customer profiles. Think it’s not a problem? The BBC reports that most emails now contain such trackers. When the message is opened in your email client, code within the pixel silently sends this information back to the company.
Tracking pixels are typically a GIF or PNG image file as small as 1×1 pixels that are inserted into the header, footer, or body of an email. The way those companies/folks send you unsolicited emails and then track them is by using a “tracking pixel” embedded in their unwanted emails. (This isn’t necessarily a dig at MailChimp, as it can be a useful tool for some folks.) Unsolicited marketing emails can sometimes tell if you’ve opened their email, when you opened it, and maybe even where you were when you opened it, thanks to tracking methods employed by marketing platforms like MailChimp. Apple’s App Tracking Transparency allows you to choose whether to allow an app to track your activity across other companies’ apps and websites for advertising or purposes. However, it doesn’t stop the tracking in your macOS Mail’s email inbox.