Dear all
I am trying to configure a rather strange setup. My customer has two WAN uplinks and a single Internal interface. On this internal interface we have the Internal Network (bound to the internal Interface) lets say it is 192.168.0.x and a seconf Internal Network 192.168.1.x. In the inside we have two seperate Exchange servers one on each network each servicing a large number of domains (more that twenty). Internal routing is handled by an L3 switch so the default gateway og 192.168.1.x network is the L3 switch which routes traffic to 192.16.0.1 which is the Astaro Internal interface IP.
The two Internal Networks must each use a different Extrnal WAN interface. I have created general multipath rules that send all traffic from Internal 1 network to the first External Interface and all traffic from Internal 2 Network. Relevant masquerading NAT rules are created.
Everything works well except the SMTP proxy traffic. SMTP is used in transparent mode with Profiles.
All mail leaving the mail server from 192.168.0.x leaves with the correct External WAN adress (an additinal address on the first External Interface) using source NAT rules. All mail leaving the Mail server of internal lan 192.168.1.0 also leaves with the same External WAN address. I would like this mail server to send out mails using the External IP of the second External Interface.
Temporalily i have added the internal ip of the second mail server (192.168.1.5) on the SMTP proxy Transparent skip list but this of course does not filter outgoing emails. In this way however mails leave with the correct External Interface.
Any advice?
Regards
Antonis Constantinou.
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