(CentOS 6.5) Ever since I setup my SMTP server I thought I set it up so it was "mail.mydomain.com" but as of late when I use the "Test config" option on the Roundcubemailinstaller if I put "mail.mydoman.com" to send a test SMTP server I get a connection timed out error, whereas if I put "myhostname.mydomain.com" I get an "OK". This is very strange to me.....I would like to have it as mail.mydomain rather than my FQDN. What do I need to do in my configurations to change it so that my SMTP server is mail.mydomain instead of my fqdn?
------------------------Postfix--------------------------
main.cf http://pastebin.com/BzD2JuGG
master.cf http://pastebin.com/BAAraQkA
-----Dovecot (incase you want extra info)-------
dovecot.conf http://pastebin.com/j00ZRRt7
10-mail.conf http://pastebin.com/0r7gJ4JY
10-auth.conf http://pastebin.com/tiuQ21ev
10-master.conf http://pastebin.com/RKcr5fxi
[link][3 comments]