Hi,
I am running a smtp relay for different domains, and I want to separate
all traffic.
I would like to bind for each domain the same IP address to receive and
send messages, and it should be for each domain its own public IP address.
I understand that with postfix 2.7.0 multi-instances feature I can
handle separate inbound queues on one system, so each queue can have its
own IP address, but what about the outbound messages ?
When users will post messages to relay outside, will the sending process
bind the output on the same IP interface from where it got the message?
I wonder it will be routed according to the route table through the
default interface.
Is there a way to send through separate interfaces ?
Thanks for help
Patrick