When you block a sender the messages are SUPPOSEED to go the junk folder!
Simply empty the folder periodically or let it do so automatically.
The reason that the spam goes to the junk folder is because
- The filter did it's job
- You have the option of unmarking the message(s) as spam in case your goofed.
You do not understand how your spam filter works in this case and are worrying needlessly. If the spam shows up in your INBOX, then you have a problem to deal with. The fact that it show in the JUNK folder means that it worked.. NO, the banned emails are
not going to disappear forever like Dorothy killing the Wicked Witch.
And it's a myth that you can find anything's source by IP address.. IP addresses are not always permanent, they can change regularly and they are not like a street address or a zip code.