Blocklist not working?

Hi all!

Last days I’m receiving a mass of empty spam mails from different hotmail-dot-com accounts. Train as spam doesn’t help to block these mails.
So I added a rule to the block list: from (adress) contains or ends with hotmail-dot-com - does not work. I tried regex .* - does not work
What am I doing wrong? I simply want to get rid of all mails comming from hotmail-dot-com.

If you are using Apple Mail with the Mail extension, it may be that no messages are being sent to SpamSieve. Please see this page.