We have an environment with two tiers of mail servers. The outer Postfix servers receive mail for our entire domain and handle delivery for certain addresses. Other specific regexp addresses at the same domain need to be passed to different internal SMTP servers. Anything else must be bounced by the outer servers. This seems like it should be easy to do (it's basically the equivalent of sender_dependent_relayhost_maps, but for recipients), but looking through the documentation and experimenting with different configurations, I haven't been able to make it happen. The most promising settings result in "Recipient address rejected: User unknown in local recipient table". How can I get this set up?
Thanks, Drew
