Noel Jones:
> > Cons: you are going to see the routers internal interface on every
> > connection, this configuration discards any filter or rate that you
> > may use based on IP address.
>
> **DANGER**
> Using SNAT is an easy way to make yourself an open relay. One must
> insure that the router's internal IP address is never included in
> the postfix mynetworks setting.
>
> Using SNAT also disables the most useful anti-spam controls.
>
> It will solve the routing problem, but at great cost.
Suggestion:
1) Configure two IP addresses on the server. Configure each router
to forward traffic to a distinct server IP address.
2) Then, tweak kernel routing to send outbound packets to different
routers depending on the local server source IP address.
Wiwtse
