I have 2 TB email addresses - for now lets call them A and B and my server is at BT Yahoo Mail. Until today everthing worked OK. Today I can email from A to B which sends and receives OK. I can send from B (to A) but I am unable to receive in A - where I get the message "Sending of password did not succeeed. Mail server mail.btinternet.com responded. Server error. My TB settings are: A = Outgoing server SMTP = email address - mail.btinternet.com (Default). Server setting POP / Port 110 default B = Outgoing server - Use default server Server settings IMAP / Port 993 default I have spoken to BT who say this is a TB issue. I am not sure if these are the correct settings. Can anyone help?