Hi, I have an Exchange 2003 server behind an ISA 2004 server Outbound mail is not working. I have not deployed a SMTP relay at this point... I can resolve external DNS sites from the DNS forwarder on ISA..... Any suggestions? Also, ISA 2000 allowed internal servers be accessed by RDP and the Internal web servers via the DNS names... that functionality has stopped. I am only able to access internal web servers via NetBIOS names. External publishing of web and RDP works just fine Thanks Darryl Janetzki