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Date:      Sat, 14 Jul 2001 10:26:34 -0500 (CDT)
From:      Brennan Stehling <brennan@offwhite.net>
To:        <freebsd-questions@freebsd.org>
Subject:   outgoing spam detection
Message-ID:  <20010714102047.K33522-100000@home.offwhite.net>

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Is there an existing way to detect outgoing spam from a server?

I run a FreeBSD server with qpopper and sendmail and would like to detect
if people are sending out large amounts of mail that could be considered
spam.  I think it would also be useful to block this behavior
automatically by limiting a user to only 20 to 100 messages a day, or
maybe 3 a minute.  This way I can be sure my server is not being misused
by my own users.  It may also be useful to have a user by user quota so I
can adjust the bar for each user.

I just updated my RBL lists for Sendmail...

http://www.ordb.org/faq/#sendmail

...and I would like to take it this extra step.  Perhaps if there is no
system to do what I am asking, I could put something together to make this
happen.

Brennan Stehling - software developer and system administrator
  my projects:
       home.offwhite.net (free personal hosting)
       www.greasydaemon.com (bsd search)



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