Hi I am facing problem while publishing OWA. I have 3 homed ISA . My ISA server is 3 Homed. My internal exchange server published and working fine. For that I configured Additional Public IP in External Interface of the ISA server. I am trying to publish OWA now. I have created destination set for exchange.domain.com. And created web publishing rule to redirect destination set request to internal mail server. And configured incoming web requests individually per IP addresses. But still not working. I have a DNS server in DMZ. In DNS server there is an an entry for exchange.domain.com which points to the public IP of the Mail server. For publishing an internal web server using web publishing rules is it not neccessory to put an entry in DNS server (which is in DMZ)? Whithout a dns entry whether the request from outside( exchange.domain.com) will route to internal server only with web publishing server? All our other web servers are in DMZ which needs DNS. Any one can help me on this.? Regsrds Aboo Arif