Guy wrote:
Hi,
I've got mail gateways that act as MX's (mail is either relayed to our
backend mail servers or forwarded to a users external email eg
yahoo.co.uk) but are also used to send mail by our users (port 587).
I'm wanting to have forwarded/relayed mail going out from one IP and
stuff from submission going out from a different IP.
Is this possible with multiple routes in master.cf or do I need to
multiple instances of postfix? I think it requires the multiple
instances, but I wanted to be sure before look at that sort of
modification to our systems.
Thanks
Guy
You'll need multiple instances of postfix.
All versions of postfix support manually-configured multiple
instances, but postfix 2.6 and later includes built-in tools
to make creating, using, and managing multiple instances easier.
http://www.postfix.org/MULTI_INSTANCE_README.html
-- Noel Jones
