Hello Guys, i have the following Question: Is it possible to place the Roles CAS/HUB/MAILBOX/Domaincontrollerall together in a "LAN-DMZ" (The Edge goes in a second "Internet-DMZ")? Our Customer wants this solution to Secure there LAN against the Provider who Administrate the Exchange... In this Case all Exchange-Roles and Domaincontrollers have full contact to each other, only the Clients (POP, MAPI, IMAP, HTTP) must go through a Firewall toaccess them. Is this Solution possible and supported? Could a statfull inspection Firewall manage the MAPI/RPC Connects from the Clients to Exchange/Domaincontroller? Thank you