How to run a mailserver?
I would like to run and admin a mail server at home. I setup postfix/Dovecot and locally work ok. I registered a domain at no-ip.com but, need help getting it configured so I can send and receive mail from and to my local server via no-ip plus. Also in the future I would like to offer friends to send/receive mail through my server using virtual domains and users.
I am confused on what to setup at both ends in order to make it work. Has any body done this? Please help. Your help would be very appreciated.