Blocked emails still coming through

Hi,

long time ago, before Apple created the "hide me email" function, I once registered on an american site about stocks and shares and financial stuff. After they send like 6 mails in 24 hours, I quickly unsubscribed.

But the damage was then: for the last several years, I get approximately 25 mails a day (!) all about finance and stuff. Unsubscribing does not help: the more I unsubscribe, the more mails I get from similar companies. So, I use the block function, so now they go automatically to my junk folder. Which should have been a good solution, but: some work emails end up in my junk, so I really need to check my junk folder every day..

And then I get p*ssed seeing between 25 and 35 mails I never signed up for... Is there a way that those that I blocked, simply do not get through? So not in my junk box? Just bounce back or something?