Hi, I'm running postfix on an internal network with an internal DNS. My internal DNS is configured for my particular domain (ie: mydomain.com). I have an MX pointer that points to my postfix machine so any email being generated for mydomain.com from the internal network ends up at the postfix machine. All that setup works fine.
My problem is the following. The email received by Postfix for mydomain.com actually needs to be resent out into the internet destined for the actual mydomain.com email server located in a geographically different location. At the moment, Postfix will do an MX query for mydomain.com, realize that it is itself, and understandably not forward the email to the appropriate place. How can I instruct Postfix on that server to ignore the MX record being served by the internal DNS and actually query an external DNS server for the MX pointer instead? I looked through the main.cf config file, but can't seem to find anything. Can I configure Postfix to use a different DNS server as opposed to the internal one specified by my resolve.conf file? Any help or suggestions would be appreciated. Thanks, Eric