Hi Folks, We are a manufacturing facility having 4 locations in the country and approximately 150 users spread around. I need to design a simple and cost effective Exchange Mail solution. Also need to use ISA for Internet control and firewall functions. I need to keep in mind about our upgrade next year for an ERP Solution. I also want to centralise the Exchange server. All 4 locations have their own seperare LAN with ADSL connection. I had been doing a lot of reading on sites but I would like to listen abt real world scenario's. Also is RPC over HTTPS is good ? TIA. Cheers Pankaj