Configuring
From cchtml.com
if you are using windows seevrr you can enable the smtp seevrr in xp i'm not sure . then you will need to create an MX (Mail Exchanger) record in a world dns seevrr (that's why you maybe need a domain) that if you want to receive mail from outside your network, if that's not the case just using telnet on port 25 or some other app you will do fine to send mail.. from ant to your network
