Hi all, Recently we have upgrade our exchange to exchange 2003, we ahve now front end and backend servers. most of our users useing OWA. If they use it form outside our LAN useing https://mail.xxx.yyy/exchange they can access it without any problems, but if they try to use the same URL to access it from our lan they can't reach it. I know that they can use the backend server URL, but this is not idle selution coz it is going to confuse the users, i want them to use one URL from both side (https://mail.xxx.yyy/exchange) is that possible? we have ISA 2004 as well. As a second issue could u please let me know which ports do I have to open on pix firewall to use RPC over HTTP. thanks Falah