I setup two boxes: one to use as a mailserver and one to use as a dns and web server. When I try and enable maildir on the mailserver in management > server > settings, it directs me to the login screen of the dns/web server. I am guessing this is why my email is not working. I don't know if this is the cause, but the domain (mydomain.com, let's say) that I used in the install of the mailserver is directed toward the dns/web server. I can login to the mailserver using the ip address, but if I use the domain (mydomain.com:81), it logs in to the dns/web server.