Hi, a postfix server that is listening on more than IP - each for another internal service - is sending them out to the recipients using one specific IP. Is it possible to specify, that mails coming in on IP 1.2.3.4 have to use another outgoing IP than mails coming in on other IPs? I know it is possible to use the domain to differentiate the outgoing IP, but every mail is using the same domain, so that is not an option. I read that one could set up multiple postfix instances - but i hope there is an easier way using the one postfix instance that is already running. The postfix version that is running: 2.9.1-4 (ubuntu precise)
thanks in advance, Andreas
