I have a front end Exchange server running Exchange 2000 and two back-end Exchange 2000 Servers. I have configured the SMTP Virtual Server on my front end server with a smart host - the IP Address of one of the back-end Exchange servers (for Inbound mail). I would like to forward all outbound mail from my back end servers to the front end server. Do I require another NIC card so that I can create a second SMTP Virtual Server with a different IP address so that I can relay mail outbound? or is there a way to configure the front end mail relay to send both inbound and outbound mail with one NIC and IP address?