multi ip and postfix

[kilburn]

Whoaaa, this is so wrong I don't even know where to start

First of all, the errors don't have anything to do with the config you have changed in master.cf. Therefore, you have changed something else that totally broke sasl authentication. Try to correct that first.

Then, to choose the outgoing IP based on the sender domain, you will have to setup a "sender_dependent_default_transport_maps" mapping. Read this website carefully (as well as the related postfix parameters help) and try to understand what it does before copying anything.

If you are unable to get it working properly, please try to ask specific questions...