[Mimedefang] stream_by_recipient beginner

[Cliff Hayes]

Hello,

I am attempting to use stream_by_recipient.

I followed the instructions in the man page and added the following:

sub filter_begin {
 if (stream_by_recipient()) {
  return;
 }
...

Now I get this in the maillog:

Sep 29 10:35:35 sadev mimedefang.pl[11193]: n8TFZZYj011357: filter_begin set
TerminateAndDiscard flag.
Sep 29 10:35:35 sadev mimedefang[11208]: n8TFZZYj011357: Discarding because
filter instructed us to
Sep 29 10:35:35 sadev mimedefang[11208]: n8TFZZYj011357: Filter time is
139ms
Sep 29 10:35:35 sadev sendmail[11357]: n8TFZZYj011357: Milter: data, discard
Sep 29 10:35:35 sadev sendmail[11357]: n8TFZZYj011357: discarded

If there's more to it than that, is there a walkthrough somewhere on the
Internet you could hook me up with to help me out?

Thanks in advance,

Cliff