I have a bit of a situation. I'm installing a new server in a multi-tenant building. There's already an exchange server in the building and I need to setup another one for another tenant in the building but the problem is that the ISP only gives us 1 single static. My client is unwilling to purchase another static IP. Is there any creative DNS or NATting I can do to allow both to work on the same static? It's 2 separate servers on totally different domains. I'll need OWA and Activesync to work. Please tell me there's a way..