Wietse Venema <wietse <at> porcupine.org> writes: First of all, thanks for the answer.
> The Postfix instance before > the content filter uses sender_dependent_default_transport_maps > to send mail with a null sender to the first smtp transport, > and everything else to the second smtp transport. > One question: since sender_dependent_default_transport_maps overrides default_transport, how can I have this within a relay domain configuration? The transport in use would be relay_transport, IIRC. Besides, I don't see any difficulties in doing this with one single postfix instance, i.e. without an after-queue filter. Is this correct? > If the above seems reasonable, then I or someone else can draft an > example configuration. That would be great, I think we could discuss better with real confs at hand. Thanks, Fabio