O2k3 Junk email filters don't block domains

[sneaky]

Greetings,

I find that if I enter a domain into the Blocked Senders list it
automatically adds "@" in front. I have 2 issues with this:

1) It only seems to block senders whos entire email address is listed
- any domains make it through. ie i've got @youremailsavings.com on
the list but (e-mail address removed) gets through.

2) Once I get it blocking domains I'd like to catch partial domains
ie. can I stop it from placing the "@" into the search string?

Any ideas?

thanks