Simple Postfix Email Forwarding

Hello! This is my first post after many back and forths with Linode support. I really hope someone can help me figure this one out–beer is on me if you do.

I setup postfix and followed the instructions on this page perfectly for simple email forwarding:

http://www.binarytides.com/postfix-mail … ng-debian/">http://www.binarytides.com/postfix-mail-forwarding-debian/

When I try to send an email to the address, I get a bounce with this response back:

550 MTA inaccessible for too long for domain

Linode suggested I change the inet_interfaces to all but that didn't change anything

If externally I do:

telnet mail.domain.com 25 it gives a connection refused error

If I do telnet localhost 25 on the machine it connects fine

Does anyone have any suggestions/need information to help?

Thanks!

Adam