4S Can only send email if connected to home wifi
I was given an Iphone4S and I'm on Orange/EE provider. When I set up the email account I got a msg "Outgoing mail server setting is provided for 02 customers in the UK. 02 customers should enter their 02 email address in primary outgoing mail server". Orange/EE is my provider. I receive emails ok but when I try to send using my Talktalk server, the msg is "The sender name was rejected by the server". Can anyone help me please?