It looks like:
http://www.mhonarc.org/archive/html/.../msg00473.html
could be the start of something to help implement the "forward-to-train" plan (that is, users

domain.com forward FP and FN from their off-server mail client back to ham_<random>

domain.com and spam_<random>

domain.com on their server to get them to be seen by the Bigjohn learnspam script).
Can anybody please help me implement Gary Funck's "strip SA's message markup" idea on my server?
Thanks,
Pete