alt Hacker NewsCapital One does this to me as well, but at least they make it clear so I actually understanding what they mean ("You haven't opened an email from us lately...").
It's fine, Capital One. I did open your emails, I just didn't load your shady tracking pixels.
Ditto, I get them all the time and just ignore them. I actually have a gmail rule that if it sees that phrase it marks it read and deletes it. Them not knowing if I read an email is not a problem I need to solve.