Ok,
I have a Windows Server 2012 DC with AD, DNS, and DHCP, SCCM 2012 running on a VM, and Lync server running on another VM. I would like to add Exchange 2010 to this on a third VM. I have gone over the prereqs and am happy to install it. But, I am a bit unsure over the following aspects:
1) My AD domain is called home.biz however I own several internet domain names setup to point to a VPS I rent. Can I configure Exchange 2010 to send/receive mail on multiple domain names on the one server? So for example, at the moment I use the mail server on the VPS (IMAP) and have multiple mailboxes on these domains and can access them all in Outlook as separate nodes. Would this functionality be possible with the setup above?
2) I have looked into this but could do with some pointers. I would like to use the VPS as a middle-man/relay between my Exchange box in my home network and the outside world. Can anyone advise me on how to do this? The VPS is running Centos with Plesk control panel and I have the ability to modify and create DNS records on this box.
I know I will have to create/edit send and receive connectors but DNS - would it be a case of creating NS and MX records on my home AD domain to point to the IP of the VPS and then create records on the VPS to point to my public static IP?
This is really only for my learning and testing but would this configuration open my home LAN to oodles of spam and vulnerabilities/attacks?
Hope you gurus help! :)