Spam Reporting Address

[Craig Retief (CSFS)]

Thx Julian, helps a lot. ;-)

Craig


On 3 Apr 2006, at 07:57, Craig Retief ((CSFS)) wrote:
Is it possible to set up an email address on a server that mailscanner picks
up as a spam reporting address to which the users can forward emails that
the users consider spam for SpamAssassin to learn from.
Funnily enough, it's already there. Your users must "redirect" or "bounce"
their message to the address, as "forward" results in all sorts of mangling
happen to the message on the way.

All you need to do is collect that mail in a mailbox on your MailScanner
server, run sa-learn on it, move it to the end of a "cumulative" file, and
repeat every day.

You want to move it out of the way as otherwise you will be re-teaching
SpamAssassin stuff it has already seen, which is a waste of time. But I
would still keep it so you can re-teach it all if your Bayes db
dies/corrupts.

Start by reading the docs for "sa-learn", it can slurp in an entire Unix
mbox format mailbox at one go (with the "--mbox" switch).

Hope that helps get you started.

Here's the cron job I use to do it, which you might find useful.

#!/bin/sh

SPAM=/var/spool/mail/spam
NOTSPAM=/var/spool/mail/notspam
TOTAL=.cumulative

LOGFILE=/var/log/learn.spam.log
#PREFS=/etc/MailScanner/spam.assassin.prefs.conf
SALEARN=/usr/bin/sa-learn

date >> $LOGFILE
if [ -f $SPAM ]; then
BOX=${SPAM}.processing
mv $SPAM $BOX
sleep 5 # Wait for writing current message to complete
$SALEARN --spam --mbox $BOX >> $LOGFILE 2>&1
cat $BOX >> ${SPAM}${TOTAL}
echo >> ${SPAM}${TOTAL}
rm -f $BOX
fi

if [ -f $NOTSPAM ]; then
BOX=${NOTSPAM}.processing
mv $NOTSPAM $BOX
sleep 5 # Wait for writing current message to complete
$SALEARN --ham --mbox $BOX >> $LOGFILE 2>&1
cat $BOX >> ${NOTSPAM}${TOTAL}
echo >> ${NOTSPAM}${TOTAL}
rm -f $BOX
fi


-- 
Julian Field
www.MailScanner.info
Buy the MailScanner book at www.MailScanner.info/store
PGP footprint: EE81 D763 3DB0 0BFD E1DC 7222 11F6 5947 1415 B654