Did you run this command, as described in the tutorial:
postconf -e 'proxy_read_maps = $local_recipient_maps $mydestination $virtual_alias_maps $virtual_alias_domains $virtual_mailbox_maps $virtual_mailbox_domains $relay_recipient_maps $relay_domains $canonical_maps $sender_canonical_maps $recipient_canonical_maps $relocated_maps $transport_maps $mynetworks $virtual_mailbox_limit_maps'
Originally Posted by squallbsr
I really would like to get the mail delivery working, thats the last thing to fix and I can get my email up and going on this new host. Any help would be appreciated. I followed the tutorial very closely, I did change all the references to 127.0.0.1 to localhost in the mysql files because for some reason the loopback ip address wasn't working. I can provide more information if needed of course.
What's in /etc/hosts? Also post the output of