I am installing Exchange 2010 Mailbox Server role on its own server. Windows Server 2008 R2. I have my CAS/HUB server on another server already installed. When I go to install the Mailbox role on the other server, I get an error saying that it needs IIS installed and a warning saying there is no Host (A) record for 127.0.0.1.
This is not a DNS or IIS server, does it have to be an IIS server? Or which roles in particular does the Mailbox server role need from IIS?