On Thu, Apr 18, 2013 at 10:32:25AM +0200, nullnullachtfuenfz...@arcor.de wrote:
> > What problem are you trying to solve (what is your actual end-goal)? > > The Postfix server has a multi instance setup. > > One instance receives only mail from senders in network A for > recipients in network B and relays all mail to a relayhost which > uses DNS servers located in network B. Your description is too sketchy. Please choose appropriate domain names under example.com, example.net, example.org, ... (if the real domain names are sensitive) that make it clear what sender and recipient addresses look like in each direction. You should be able to the right thing with transport_maps, but specific guidane requires a less vague description. -- Viktor.