Robert Moskowitz:
> I have read the man page and
> http://www.postfix.org/BUILTIN_FILTER_README.html, but don't think I got
> the why of all of it yet.
This is an opportunity to improve the world, by pointing out where
the documentation is incomplete or where it presents conflicting
information.
> A couple howtos I have been using as guidance have the following content
> for master.cf
You want to use amavisd-new which uses SMTP. The pickup service
example is for a different filter integration approach.
Wietse