Right i have a firewall (Netscreen 25) with a front end server and a back end server configuration for my e-mail and calendar and file server. We use the Front end server only for outside request using OWA. They are all on the trust side with a MIP pointing to the Front end server for outside request. I had tried to put the Front end on the DMZ but it was not working. I know it is not the best set up but i had to make it work fast hehe. My plan is to separate the exchange server from the domain controller PC, get rid of the front end server and install an ISA server to filter outside traffic. Is it a good scenario or not and will i need to get rid of my existing firewall or not ???
Thanks in advance