I have setup ISA Server everything works but incoming mail.netstat shows it listening on port 25.I have the ISA server2000 book and have followed it to the letter but still no mail.We are connected to the internet by a router and 2meg connection internal DNS is forwarded to an external scource set up as recomended in the book.Should the MX record point to the internal IP of the mail server or the external card on the ISA server ?. "Help" been at this on and off for two weeks now getting ******off rapidly. Martyn