[Mimedefang] Run MIMEDefang in a Debug Mode to test SpamAassassin
skmimedefang at smail.inf.fh-bonn-rhein-sieg.de
Fri Feb 22 03:02:37 EST 2008
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On Thu, 21 Feb 2008, Stephen Gurnick wrote:
> 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.
Most people forget that MIMEDefang runs as "the defang user", whatever
you've configured it to and use another "local.cf", Kayne Kruse already
> 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
Yes. I've posted it some time ago, now I put it onto a page:
Actually I grew up hacking C, instead of Pascal or Modula, and lived the
idea posted on http://www.eptacom.net/pubblicazioni/pub_eng/wirth.html
almost at the end of the page:
"But Tony, what is your answer if we frankly confess that we dearly love
debugging? You want us to abandon our most cherished enjoyment?"
You can use the Perl debugger to examine your MIMEDefang filter.
There are timing considerations etc., but basically you can verify the
program path manually, by carefully crafting the parameters for
senderok/recipok or preparing the COMMANDS/INPUTMSG files. This has much
more advantages over putting syslog's into the code and watch the myriads
of lines. Of course, the timing is totally different. Because MIMEDefang
does not support to pass information from pre-DATA- to DATA-phase
functions in-filter, e.g. filter_sender => filter_begin, you can even
simulate a complete SMTP dialogue by preparing the Work directory, then
call dbgMimedefang with senderok, recipok, and finally without args.
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