email builder:
> > > Can I override default_transport?
> >
> > As documented:
> >
> > http://www.postfix.org/postconf.5.html#default_transport
>
> Right, but from what I can tell (testing it), it's like transport_maps,
> in that I can't change it willy-nilly in my smtpd process with a
> -o line, right? Works fine if specified in main.cf, but ignored
> if I set it in master.cf.
The parameter is not documented in the smtpd(8) manpage, therefore
you are wasting your time by setting it on the master.cf command
line.
I spend a huge amount of time keeping the documentation complete,
and I would appreciate it if you paid attention to the result of
this effort.
If you need per-sender features, you must use a Postfix release
that supports them.
Wietse