This can happen from time to time, unfortunately, although we have implemented a number of solutions in recent months in order to prevent Mailtrack counting when you open the emails you've sent.
If you open your sent emails on a computer that has the Mailtrack extension installed, for example, Mailtrack won't count the open.
If you open your sent emails on a computer that has the Mailtrack extension installed, for example, Mailtrack won't count the open.