I have a domain name registered at godaddy.com called something.com. I have put in a mx record as mail.something.dyndns.org at godaddy Primary MX record. No secondary MX record
In my Fedora Linux using postfix I have modified the main.cf to show my hostname = mail.something.com
On my linksys router I have enabled port forwarding. SMTP port 25 is forwarded to my linux server at 192.168.1.100 I have named my linux server hostname something.com
I am able to send external emails but not receive emails. DNS Report shows there is no listening server at mail.something.dyndns.org. When connected over the LAN I can telnet to the Linux server at port 25
What else do I need to configure.