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two public IPs serviced by one internal mailserver

Alasdairb asked
Last Modified: 2012-06-22

we have one mailserver on our internal 192.168.x.x network, and have several public IP addresses. Currently I have mapped the internal IP of the mailserver to an external IP one-to-one through our Cisco ASA firewall.

Now we wish to host a second domain on the mailserver but using one of the spare public IPs for that new domain. How can I forward the emails from the two different public IP addresses to the single mailserver inside?


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