I was wondering if anyone knew a simple how to, with iptables, for the following problem.
I would like to divert email from a particular host to a secondary mail server on a LAN.
For example we like to divert all incoming port 25 traffic from a particular address say 111.111.111.111 to port 25 on a particular internal mail server say 192.168.1.5 but the rest of the traffic needs to continue going to the normal mail server on the Internet facing machine.
TIA
Al Steel
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