Thanks for your feedback! Sorry to hear that you are having these problems with blocking senders.
Our junk / spam team is looking into this suggestion, and we should have an update in the next month or two.
ColinRichard Rogers commented
I solved this problem for myself. I just changed to another email provider. This old address is being phased out.
You can tell your junk/spam team not to worry their pretty heads over it.
197 votesRichard Rogers commented
These complaints have been going on for years. They keep saying they're going to fix it soon...
I suggest they're not going to do it.