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bretthancock -> changed IPs, need help with DNS records as we cannot receive e-mail (8.Mar.2008 7:05:01 PM)
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We changed our domain today for all the servers to use private IPs. The Exchange server can send e-mail to the outside world however it cannot recieve e-mail from the outside world. Right now our DNS records with our ISP are set up as follows.
Host(A) SSMX 12.18.185.26
MX @ ssmx.domainname.com
Our internal DNS is set up as follows
Host(A) SSMX internal IP
MX @ ssmx.domainname.com
We have a NAT rule in place on the firewall that translates everything from 12.18.185.26 to the private IP of the exchange server. We cannot telnet to 12.18.185.26 from the outside world either. What are we doing wrong? Is there a firewall misconfiguration?
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