SMTP load balance

Pantelis,

 

 

Modifying the source IP address via SNAT is an option that is most commonly used in order to ensure server responses are properly routed back through the BIG-IP, however it is not required for SMTP load balancing if your internal routing is set up correctly. If your SMTP servers will already route response traffic back through the BIG-IP without having the BIG-IP modify the source IP, then you can go ahead and disable SNAT on the Virtual Server, and your SMTP servers will 'see' the true source IP of the connection.

 

 

Let me know if this helps

 

-Ryan