I've given up marking emails as spam. I was told that when X number of people do so, the offending emails are barred - this does not happen. My talktalk emails are forwarded to Yahoo - and very few of the numerous spam ones from my TalkTalk email get through! For those that do, Yahoo has an option to BLOCK all future emails from the offenders. Why on earth can't TalkTalk do the same? TalkTalk's system is woefully incapable of recognizing spam even when I - and doubtless countless others - identify the culprits.