Earlier quoted context omitted.
> You're supposed to stop sending emails to someone who's not interacting with them, or you get an extra point towards being flagged as spam Can you give a source/reference for this? I'd like to understand it more. I don't allow any remote content when I read emails, and I get quite a lot of regular newsletters. Why am I not being unsubscribed?
Here for example is Gmail's explanation: https://support.google.com/mail/answer/81126?hl=en CTRL-F "Send email to engaged users" Some choice quotes: - "Consider unsubscribing users who don’t read your messages." - "Periodically send a confirmation message to users to make sure they still want to get your messages."
Also, as someone whose mail client doesn't load external resources for privacy reasons, I'd be annoyed if you unsubscribed me because you weren't tracking my reading. However, an occasional confirmation (say, once or twice a year) as they suggest would be just fine. You could even restrict those to just those subscribers who do not trigger the tracker.