How to Install Windows Server 2003 R2 on Hyper-v 2008 R2 SP1/Hyper-v 2012 R2 SP1

1. Go to Hyper-V in your windows server.
2. Install the OS using DVD in Hyper-V
3. Now to get network adapter for VM you need to select legacy adapter instead of Normal adapter.

Mail server role: Configuring a mail server

http://technet.microsoft.com/en-us/library/cc780996%28WS.10,printer%29.aspx