I am running server 2003 with Exchange 2003. Suddenly the server will no longer send e-mails, they are getting stuck in the queue and I am getting a delivery status delayed message. The server is not a full mail server, I am using a pop grabber to recieve e-mails from a remote mail server so it is strictly acting as smtp. Could an incorrect MX record cause this all of a sudden and would it stop e-mails to ALL hosts? What can cause this?