Dominic Raferd:
> On 3 June 2017 at 14:01, Wietse Venema <wie...@porcupine.org> wrote:
>
> > Marek Kozlowski:
> > [ Charset ISO-8859-2 converted... ]
> > > On 06/03/2017 02:13 PM, Wietse Venema wrote:
> > > >>> Canonical maps replace headers or envelopes before the entire message
> > > >>> is received. Milters replace/add/delete envelope or content after
> > > >>> the entire message is received.
> > > >>
> > > >> I'm not quite sure if I understand the term you use: `before/after the
> > > >> entire message is received'. I'd really appreciate any clarification.
> > > >> BTW: Is there any way to change the order?
> > > >
> > > > To answer the first question, 'before' refers to events that happen
> > > > earlier than 'after'. Changing the order requires time travel or
> > > > the ability to predict the future. The second question makes no
> > > > sense at this point in time.
> > >
> > > ;-)))
> > >
> > > My question regarded: `the entire message is received'. With the stress
> > > on `entire'. I thought that local receives a message as a whole. You
> > > answer suggested that it receives messages partially. Some part, than
> > > the canonical starts working then the rest and then a milter operates?
> >
> > Perhaps surprisingly, Postfix uses the same Milter support
> > for mail received from the network and from local submission.
> > Mail in the postdrop queue is not received. It is waiting
> > to be received by the Postfix mail system.
> >
> > Wietse
> >
>
> Time travel is one way to change the order (i.e. process milter before
> canonical_maps), but couldn't it also be done by re-injection?
>
> Time travel sounds more fun though, please provide working example.
Agreed, one can always do different transformations during different
traversals through Postfix, but I suspect that the requestor had a
simpler approach in mind.
Wietse
