Can I ask why you need/desire to run an Exchange server out of your home?
I used to do it too, but with cloud Exchange running a total of $10/month for the two mailboxes I needed, it is much cheaper than hardware + electricity + licensing... if you're licensing Server 2012 R2 and Exchange properly, the cost of those alone exceeds $1k.
Last edited by javabytes; Aug 2, 2016 at 5:49 pm