I have the following problem and scenario:
Fedora box hosting website: www.domain.com
PHP Helpdesk Script which sends email to users on submitted on that same box.
The problem is that email addresed to 'domain.com' is not leaving the server.
Email is hosted on another box.
My problem i know lies on DNS, Postfix Config or Hosts/. Attached some screen shots.
alt text http://www.hyperxr.com/1.png
alt text http://www.hyperxr.com/2.png
Output of postfix -n
allow_percent_hack = no
append_at_myorigin = no
append_dot_mydomain = no
command_directory = /usr/sbin
config_directory = /etc/postfix
daemon_directory = /usr/libexec/postfix
data_directory = /var/lib/postfix
debug_peer_level = 2
html_directory = no
inet_protocols = all
mailq_path = /usr/bin/mailq.postfix
manpage_directory = /usr/share/man
newaliases_path = /usr/bin/newaliases.postfix
readme_directory = /usr/share/doc/postfix-2.5.5/README_FILES
relay_recipient_maps = hash:/etc/postfix/relay_recipients
sample_directory = /usr/share/doc/postfix-2.5.5/samples
sendmail_path = /usr/sbin/sendmail.postfix
setgid_group = postdrop
smtpd_sasl_local_domain =
smtpd_sasl_security_options =
swap_bangpath = no
unknown_local_recipient_reject_code = 550