virtualbox.org

So I'm trying to create a test platform of a complete network.

I created 1 VM that has windows server 2003 (active directory, dhcp, dns server) and 2 vm that has win xp pro sp2 (client1 and client 2)

Both are hosted on a windows xp system.

I managed to configure and make the active directory working. Client 1 and client 2 can talk and share files w/ server 2003.

My next goal is to simulate a mail server.

Is it possible to create and send mail between client 1 and client 2 using server 2003 as the mail server with a fake domain, i.e., tester.local
So basically, can there be an email address called client1@ltester.local ??

Do I just need to add a new server role and install the mail server option under "manager your server"?

thanks,

This can be done with internet and bridge networking, how is beyond the scope of this forum.

That is a Windows Server question, not a VirtualBox question. The fact that you use virtual machines or virtual networks does not change the way Windows Server works.