I am new to DA and having trouble creating a user to have a mailbox setup with POP. The help page from http://admin.site-helper.com/rpackages.html confuses me. Why do I need to give Virtual Domains or SubDomains or IPs to users of my site? I just want to set up a simple site with users who can use e-mails. Please guide me. I believe that I setup the mail server DNS correctly.