Fabio Sangiovanni: > 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.
Both first and second smtp transport sending mail to the content filter. > One question: since sender_dependent_default_transport_maps overrides > default_transport, how can I have this within a relay domain configuration? The Postfix instance before the content filter sends *all mail* to the content filter. This simplifies routing considerably. > 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? Perhaps, if you know how to deliver mail from <> to external recipients, to internal recipients, and to local recipients. > > 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. OK, I'll look into that. Wietse