24-07-14, 11:21 AM
Get on to BT. They've recently changed from BTYahoo mail to BT Mail and some of the settings are different. I also use BT and Outlook Express (aka Windows Mail) to download from the servo to my computer rather than webmail. The only time I have problems is if I'm connected via a different ISP (such as when I'm in a hotel or at my mates place in France) but that usually affects sending. I get a similar message to you and sometimes I can't send emails with attachments, sometimes can't send any.