I've recently purchased a imac and am having an issue with Apple mail. I'm with TalkTalk broadband and have set up the mail but although I can receive e mails I cannot send them.
The diagnostics shows it is not connecting to the smtp.talktalk.net adress. I've double checked the settings and deleted the account and reset it up with no luck.
I've done all the google searches and it seems to be a common issue but I cannot find a fix.
Any help is greatly appreciated.