On Wed, 14 Mar 2012, David B Funk wrote:

One clue: "X-Originating-IP: [41.189.207.189]"
Check the various RBL hits on that address. ;)

Are there existing plugins for this?

Is there a way to check a range to see if it's part of a known
blacklisted botnet?

The "cbl.abuseat.org" RBL explicitly lists infected/bot-net machines.
(which does list that IP addr). So mail that contains a CBL listed
ip addr anywhere in its headers is suspect.

I forgot, the Spamhaus XBL list contains the CBL list (plus the
NJABL Open Proxy list) so it's the thing to use for this kind of
check (particularly if you've got a spamhaus data-feed ;).


--
Dave Funk                                  University of Iowa
<dbfunk (at) engineering.uiowa.edu>        College of Engineering
319/335-5751   FAX: 319/384-0549           1256 Seamans Center
Sys_admin/Postmaster/cell_admin            Iowa City, IA 52242-1527
#include <std_disclaimer.h>
Better is not better, 'standard' is better. B{

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