[rt-users] Setup RT with existing postfix on separate server

[Donny Brooks]

Are there any others running an external postfix mail server and RT? I 
have been through all of the wiki/google hits and only see examples of 
how to setup RT in an exchange domain or with postfix/sendmail on the RT 
box. I have an existing domain with postfix/dovecot running on its own 
machine. RT is a totally separate machine (actually a Xen VM). I am at a 
loss as to even how to begin to get mail delivered to the RT machine and 
tickets created from that. I have the following setup on the RT box:

rt: "|/usr/sbin/rt-mailgate --queue 'general' --action correspond --urlhttp://localhost/"
rt-comment: "|/usr/sbin/rt-mailgate --queue 'general' --action comment --urlhttp://localhost/"

However mail cannot be sent to rt at rt.domain.tld or 
rt-comment at rt.domain.tld due to failing DNS resolution that we do not 
have control over. I have setup rt.domain.tld in our internal DNS 
though. How have others accomplished this? I have thought about 
fetchmail on the RT box but not sure if there was a better solution than 
that. Thanks for any and all input.

Donny B.