[SAC] [OSGeo] #190: Need SPAM filter for mailing list admins

Committees SAC mailing list
1

#190: Need SPAM filter for mailing list admins
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Reporter: tmitchell | Owner: sac@lists.osgeo.org
    Type: task | Status: new
Priority: normal | Component: SAC
Keywords: spam |
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Those of us set as administrators of OSGeo lists get a lot of SPAM sent to
the list owner addresses. I'm requesting that a simple filter be
implemented, at least for mailman-related messages. I can't recommend any
software for doing this and have had some problems with "blacklist" based
ones in the past, so reluctantly I ask for some way to help this.

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Ticket URL: <http://trac.osgeo.org/osgeo/ticket/190&gt;
OSGeo <http://www.osgeo.org/&gt;
OSGeo committee and general foundation issue tracker.

2

#190: Need SPAM filter for mailing list admins
------------------------+---------------------------------------------------
  Reporter: tmitchell | Owner: sac@lists.osgeo.org
      Type: task | Status: new
  Priority: normal | Component: SAC
Resolution: | Keywords: spam
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Comment (by neteler):

This can be implemented fo example like this (worked for years on
grass.itc.it):

Protecting Mailman with bogofilter against spam

http://mpa.itc.it/markus/bogofilter/index.html

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Ticket URL: <http://trac.osgeo.org/osgeo/ticket/190#comment:1&gt;
OSGeo <http://www.osgeo.org/&gt;
OSGeo committee and general foundation issue tracker.

3

#190: Need SPAM filter for mailing list admins
------------------------+---------------------------------------------------
  Reporter: tmitchell | Owner: sac@lists.osgeo.org
      Type: task | Status: new
  Priority: normal | Component: SAC
Resolution: | Keywords: spam
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Comment (by tmitchell):

Hi all - anyone on SAC able to help with this? We are starting to scare
away some list admins who are bombarded with SPAM sent to
[list]-owner@osgeo.org. I don't know enough to install this bogofilter
configuration.

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Ticket URL: <http://trac.osgeo.org/osgeo/ticket/190#comment:2&gt;
OSGeo <http://www.osgeo.org/&gt;
OSGeo committee and general foundation issue tracker.

4

#190: Need SPAM filter for mailing list admins
------------------------+---------------------------------------------------
  Reporter: tmitchell | Owner: sac@lists.osgeo.org
      Type: task | Status: new
  Priority: normal | Component: SAC
Resolution: | Keywords: spam
------------------------+---------------------------------------------------
Comment (by neteler):

While bogofilter installation requires a supervised training phase, I use
"greylisting" on another server quite successfully. Spam dropped from
1700/day to 5-10/day.

Effort (system uses postfix): postgrey ![1] installation plus one-liner
addition into config file. Then restart postfix and enjoy. I defined a
very short greylisting time to avoid delays of mail delivery. That still
helps a lot.

![1] http://postgrey.schweikert.ch/ or from your preferred distro.

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Ticket URL: <http://trac.osgeo.org/osgeo/ticket/190#comment:3&gt;
OSGeo <http://www.osgeo.org/&gt;
OSGeo committee and general foundation issue tracker.