Phil Howard:
> I'm assuming the header checks and body checks is implemented as some
> code that sees a stream, rather than the whole message (especially
> when doing body checks), so I'm guessing it would be non-trivial to
> add a new action in a future version that would do a "prepend to the
> top of headers". So I'm thinking about an alternative where I do a
This is how header_checks/body_checks work. They see content
as mail streams through Postfix.
With Milter support, it is possible to change contentm, but the
Milter head/body are done only after the entire message is already
stored in the queue file. That is, Milter sees head/body not while
mail streams through Postfix, but rather, after the fact.
Wietse
