Can I include tracking pixels in emails?

Question

Email

Hello everyone
There is a way to track the opening of letters - insert a pixel, which, when downloaded from the server, will take into account the opening. I read on quora / stack that many mailers throw letters into spam for this and lower the overall rating of the sender. No one knows from their own experience - is this true or can a pixel be used calmly?

Answer 1

You can form a letter as you see fit - even with pixels, even without, even with indecent pictures.
The receiving server, guided by its own criteria, decides whether to skip the message or block its reception. It can also cut out the link, replace it so that it does not work, or even skip it through tidy, "ripping off" to bare text.
The receiving client, guided by its own criteria (which may be fundamentally different from the server's criteria), decides where to put the letter - in inbox, spam, or even delete it right away. Any links immediately reduce the reliability of the letter, many clients automatically block the download of remote content.
If you want to solve the questions "why my letters end up in spam" - turn it on :D