Cannot delete 2 entries from blocked senders list

Hi,

I have noticed that for some reason some of the blocked addresses in my Blocked Senders list are not in the email (subject @ domain .com) format. They are just single words or a word with a quotation mark. I have tried to remove these from the list, but every time the page is refreshed or reloaded they are still there. I wish to have these removed. The list of problem "addresses" is:

brid.stirtevaunt@fouq:

nnagra.com

Please remove these from my Blocked Sender's list as I suspect one of them might be interfering with me getting some emails I actually want.

 Thanks in advance.