Hi The situation is thus:-
I wish to provide a v6-to-v4 relay for two different domains using the same postfix process. Mail for the domains is hosted by google, so the destination host will be ASPMX.L.GOOGLE.com. for both domains. However, recently my ipv4 provider has blocked outgoing tcp:25 so now I must use tcp:587 using TLS and authentication. The problem is that I need to use two different credentials depending upon the domain for which the message is being relayed. i.e. u...@domain1.example.com -> postfix -> ASPMX.L.GOOGLE.com. (user: domain1) u...@domain2.example.com -> postfix -> ASPMX.L.GOOGLE.com. (user: domain2) How do I configure this? Regards, Chris
