[Mailman-Users] Spoofed Addresses

Brad Knowles brad at stop.mail-abuse.org
Sun Oct 31 02:15:10 CEST 2004

At 3:06 PM -0400 2004-10-30, David Relson wrote:

>  Actually it's more of a mailman setup question, as in "why don't mailing
>  list messages go through procmail (which handle bogofilter and other
>  such stuff)?" and "how do I set up mailman in a postfix environment so
>  that filters, for example virus checkers, get run to protect the list
>  from propagating bad stuff, e.g. viruses.

	Actually, no.  This has less to do with Mailman than it does with 
getting these kinds of features into your MTA.  Postfix is quite 
capable of doing that, as is sendmail, Exim, and every other MTA that 
I am familiar with.  Indeed, most MTAs have a wide variety of ways in 
which these kinds of features can be integrated.

	We have highlighted a few in the Mailman FAQ Wizard at 
<http://www.python.org/cgi-bin/faqw-mm.py> (such as FAQ 6.12, which 
discusses the integration of postfix, Mailman, and amavisd for 
anti-spam and anti-virus scanning), or FAQ 4.15 (which provides a 
different method of integrating procmail into the message flow), FAQ 
4.23 (which mentions both of these methods as well as a patch to 
integrate SpamAssassin directly into Mailman itself).

	Alternatively, you could also incorporate a Python-based 
anti-spam filter directly into Mailman.  We do that for python.org 
with SpamBayes.

	If you spend some time digging around in the FAQ and in the 
archives, you may very well turn up several more answers.  See FAQ 
1.18 for a variety of ways you can search the archives.

Brad Knowles, <brad at stop.mail-abuse.org>

"Those who would give up essential Liberty, to purchase a little
temporary Safety, deserve neither Liberty nor Safety."

     -- Benjamin Franklin (1706-1790), reply of the Pennsylvania
     Assembly to the Governor, November 11, 1755

   SAGE member since 1995.  See <http://www.sage.org/> for more info.

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