[Evolution] output from mail piped to external programme

[Andrew Collier <collierab gmail com>]

hi,

i am in the process of migrating from a procmail/mutt setup to
evolution. so far i am really impressed by the incredible functionality
and ease of use. most of the things that i previously used to do with
procmail (and which required some rather arcane syntax) are achieved
with ease.

however, i have run into a problem replicating the following behaviour.
one of my procmail recipes is:

:0 w :
* ^Subject:.freshmeat.net Daily Update
* !^X-Loop:.*carrioncatcher
| $HOME/bin/carrioncatcher.py | $SENDMAIL -t

which pipes the incoming message through a script, the output of which
is then sent through to my inbox. now in evolution i can get the message
piped to the programme by setting up a message filter. but how do i get
the output from that filter to then be redirected to my inbox?

thanks for the help!

best regards,
andrew collier.