emailtracker

I tried the hubspot email tracker and it doesn't work properly. When I email my own gmail account from my 365 outlook, it says instantly that I read the email just when I sign into my gmail account (before even opening the actual email). How is this possible? I also don't like the big pink...

I tried the hubspot email tracker and it doesn't work properly. When I email my own gmail account from my 365 outlook, it says instantly that I read the email just when I sign into my gmail account (before even opening the actual email). How is this possible? I also don't like the big pink...