Le 14/04/2013 20:08, Julian Pilfold-Bagwell a écrit : > Hi List, > > I have a question regarding running Postfix in a DMZ. I have a UTM > with a single IP address on it's red interface but our ISP provides a > range of 15 IPs for hosting websites, mail, etc.. > > I have an external IP allocated and forwarded to the mail server, but > when remote servers perform a reverse lookup, the header contain the > red interface IP. I tried setting proxy_interfaces = and > smtp_bind_address = to the external IP but it still came out as the > red interface. Is there a way of pushing Postfix into using the > external IP or do I have to mess with DNS.
I guess your UTM performs NAT. if so, it is the piece to configure so that traffic out of postfix gets the right IP.
