setup postfix SMTP on amazon ec2

Im trying to setup a postfix SMTP mail server on my amazon ec2 instance. i followed this guide http://ift.tt/1eLgsPD and many other ones on configuring the main.cf

everytime i try to telnet my mail server mail.domain.com smtp it trys to connect to address XXX.XXX.XXX.XX but then operation is timed out and im unable to connect to remote host.