So unfortunately, I've been tasked with setting up an Ubuntu server to send and receive email (amongst other things). My friend is hosting the Ubuntu VM on his box, but has only done limited setup.

This is weird, when i do a apt-get install postfix .... dpkg goes thru configuring and tries to add a user and group. <BR><BR>So it asks for a password two times (why, wtf, im root already)<BR> ...

Unless you're a sysadmin you don't generally have to worry that much about getting email delivered, you just hookup your GUI email client to your external email account and you're done. But what if ...