There must be a simple answer but it's got me beaten!
I've just got a new MacBook, and I've set up Mac mail by copying settings from my old one. Incoming mails arrive fine, but I can't send any out. The Mail Preferences page insists that the server is offline and can't be contacted. I've rechecked the SMTP settings many times, but trying to change anything brings up the 'Can't connect to server' message.
What am I doing wrong?
Alex.