HOWTO Setup Postfix

Install Postfix

# emerge postfix -va

Configuration

edit /etc/postfix/main.cf

myhostname = zero.iat.sfu.ca 
           naturally, use your server's real name :-)

mydomain = iat.sfu.ca

add to /etc/postfix/main.cf

# rewrites addresses
recipient_canonical_maps = hash:/etc/postfix/recipient_canonical
sender_canonical_maps    = hash:/etc/postfix/sender_canonical

# maps 'virtual' addresses
virtual_maps             = hash:/etc/postfix/virtual

# the name says everything
###append_dot_mydomain = yes

Check that this is uncommented, in /etc/postfix/main.cf

alias_maps = hash:/etc/aliases

relayhost = gotta check on this!