I have an Exchange server and when my users send to and address ?@cfl.rr.com the messages do not go through.
I called the cfl.rr.com NOC and they have change their servers to deny messages without reverse DNS lookups.
My email is @ucumc.net and the ISP has the IP for the Exchange server listed for reverse DNS lookup, BUT when you reslove to the server you get the server name and not the Domain. Our Domain is being hosted at another IP address for our website.
Can I config my exchange server DNS to reply back to a reverse lookup with ucumc.net?
And How would I go about doing this?