Server 2012 Essentials
This is for a small business so Enterprise cost is not what I am looking for. Free to modest cost.
New network with about 20 workstations running anywhere from Windows XP Pro to Windows 8 Pro. I need a messaging solution. One that will allow domain users to not only message back and forth but possibly email back and forth, only inside the LAN. I'm not running Exchange.
What have you used and what do you recommend?