I use Windows Live Mail with Windows 8. This problem started suddenly. I get the message "no new emails" when I try to send a test email to myself. The Windows Live Mail settings are correct and I've had them double-checked by a third-party technical support service. My incoming emails are building up on the server and I cannot get them into my inbox. Profoundly grateful for any help.
ORIGINAL TITLE: All of a sudden, I can send emails but not receive them.