Here is the scenario: I have 2 Exchange Server 2010 on 2 different Virtual Machines, created by and based on Hyper-V. They have IP and domain: 192.168.5.11, domainA.com ; and 192.168.5.12, domainB.com respectively.
The problem is, I only have 1 public IP, say 18.104.22.168 . How do I configure the settings so that I can successfully receive emails using both Exchange servers?
Given that I cannot use single Exchange server for multiple domains.
-- UPDATE --
To clarify, the domainA.com and domainB.com mentioned above are website domains, instead of multiple Active Directory forests. Users of the two Exchange Server shares the same Active Directory. I know that ONE Exchange Server can handle multiple domains, but I would like to separate them into different Virtual Machines, for load balancing and data separation.