We have an ASG 7.04 with 2 wan links from different providers and 1 internal network. We have smtp NAT from an IP on Interface Wan 1 -> Barracuda spam firewall. we would like to assign an IP that is on our Wan 2 interface to be our backup MX. I take this is a policy routing issue.
Currently Wan 1 is the Default Gateway
Wan 2 is only handling Site to Site VPN traffic.
What would we need to do? we are not using the SMTP proxy on the astaro.
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