> On Jan 19, 2018, at 6:10 PM, Grant Edwards <grant.b.edwa...@gmail.com> wrote:
>
>> Note that with my suggestion to override "default_transport" not only the
>> original messages, but also any bounces or delay notifications go out via
>> the same transport.
>
> Ah. That's a problem. I would need the special pipe transport to be
> used for everything _except_ bounce/delay notifications.
You have two possible solutions:
1. Use sender_dependent_default_transport_maps with regexp tables
to direct all non-empty sender domains to the special outbound
transport.
2. Use "content_filter" to direct all email via the outbound transport,
with "default_transport = smtp" as usuaul, as internally generated
messages are not subject to content_filter.
The difference between 1 and 2 is that 1 will have specially handling
for all email with a non-emtpy sender address, while 2 will have
special handling for all email that originates outside of Postfix.
--
Viktor.
