I can't send emails
Suddenly, while I can receive email messages on my Outlook, I cannot send any messages. Nothing has been changed in my Outlook settings, everything worked fine until a few days ago. Error message says the server has timed out waiting for a response from the POP server. my POP server is AT&T through Yahoo. I phoned AT&T and they passed the buck to Microsoft because I can send and receive messages successfully from Yahoo. How can I fix this?