Yes I have ran the ICW and checked the MX records which seemed to be
working as the server was recognised as mail.domain.com. A couple of
hours later I recieved a non delivery report from our server to the
external email account I was using for testing which appeared to be
generated by exchnage server and was stating the delivery status to be
5.0.0. Any suggestions on what could be causing this status?
Thanks for you help so far.