please help me how to configure my exchange server 2003 and ISA Server 2004, currently i am using now pop3 to get my email from my hosting IP 18.104.22.168. to download my incoming message from external to internal by using igetmail. now myboss he like to use ISA server 2004 to work as a firewall and work like igetmail. i done already the setting for my firewall but, i got some problem how to allow and put my hosting IP address in the isa server. id tried direct from outlook it work the message from external droping to client by outlook configure . now i need to recieve external to ISA then drop to exchange server 2003.