Milter to modify Mail Headers?

Problem: Milter can add Headers, but can not change them including the "Subject:" see:

MIMEDefang

http://www.mimedefang.org/ http://www.mickeyhill.com/mimedefang-howto/#ss2.4

#> apt-get install mimedefang
#> nano /usr/share/doc/mimedefang/README.Debian
#> cd /etc/mail
#> nano sendmail.mc
insert: INPUT_MAIL_FILTER(`mimedefang', `S=unix:/var/spool/MIMEDefang/mimedefang.sock, F=T, T=S:1m;R:1m')

SpamAssassin?

SpamAssassin? Milter: http://savannah.nongnu.org/projects/spamass-milt/

Webmin

#> apt-get install webmin-sendmail https://www.netfrag.org:10245/sendmail/

Misc Pointers

http://www.maymi.de/content/unix/sendmail.php http://spamassassin.apache.org/full/3.0.x/dist/doc/spamd.html http://www.redhat.com/archives/redhat-list/2003-June/msg00198.html http://www.visi.com/~hawkeyd/spamfilters.html http://ftp.cfu.net/pub/amavisd-new/README.sendmail-dual