"Some UK users may have a particular problem here because BTInternet farmed out their email service to Yahoo a few months ago. The result was that BTInternet users had their email service instantly go from awful to disastrous."

BT made Yahoo their portal and email service many years ago. They are now in the process of changing people over from Yahoo to their new email partner Openwave Messaging. Just to correct you Jack Campin Yahoo are not the problem.