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.
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