Email can bounce for many reasons. I’ll look at several of the most common mail bounce messages, and try to interpret what they really mean.
You are exactly right: you are being punished for the actions of others. To understand who those “others” are, we need to look at how email makes it off of your computer to its destination.
If your email service is on a blacklist it’s going to be pretty hard to get it removed. Let’s try a work-around and see if that helps.
Over-aggressive spam filtering may be the reason why you’re not getting the email you signed up for.