[Mimedefang] Run MIMEDefang in a Debug Mode to test SpamAassassin

[Stephen Gurnick]

I am trying to determine how MIMEDefang and SpamAssassin are working in 
conjunction with each other.  Over the last few months a lot of spam has 
been getting through, much more than usual, and Im trying to determine 
where the weak link is in our 
Sendmail(8.14.1)+MIMEDefang(2.63)+SpamAssassin(3.1.9) setup.  I am 
performing sa-updates via a cron job daily and I have verified this is 
working.

I discovered that if I take a piece of spam that got through and run it 
through SpamAssassin manually using the command: "spamassassin -t < 
spamemail" it will get marked appropriately as spam.

Because of this Im not sure how these spam emails are getting through 
unless if somehow MIMEDefang is not calling spamassasin or if something 
else going on.

I have verified that MIMEDefang sees that SpamAssassin is installed and 
available by running the command mimedefang features  The spamassassin 
entry is marked as a yes, which I guess is a good start.

Is there a way to manually run MIMEDefang against a spam email in some 
kind of a debug mode?  I am able to do this with SpamAssassin and verify 
that it is working properly, however I do not know how to do this, or if 
its even possible, with MIMEDefang.

Any suggestions for how to go about testing mimedefang would be greatly 
appreciated.  If there are any configuration files that I can post to help 
narrow things down, please let me know.

Thank you.