Re: Good SPAM filter for Outlook for use in a small non-profite ORG

["Mario A. Spinthiras" <mario () netway com cy>]

Devdas Bhagat wrote:
> On 24/09/06 16:50 +0300, Mario A. Spinthiras wrote:
>   
> > Is there a way to implement RBL within an email client ? If so you dont 
> >     
>
> SpamAssassin or equivalent.
>
>   
> > need much of the super duper applications written today to stop spam. 
> > RBL usually works perfectly on mail servers. I dont see how it couldnt 
> >     
>
> DNSBLs are supposed to be used on MX hosts. anything beyond that leads
> to accept, then bounce scenarios, or merely tagging as spam.
>
> Devdas Bhagat
>
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>   
Sorry about my first post with the shell script in it. This is the final 
version. Still a quick whip in the kitchen. Home made cooking tastes 
nice. Hope this is inspirational.

Regards,
Mario A. Spinthiras

#!/bin/sh
# Mario A. Spinthiras
# mario at netway dot com dot cy
RBLS="in.dnsbl.org sbl.spamhaus.org whois.rfc-ignorant.org 
relays.ordb.org nonconfirm.mail-abuse.org dialups.mail-abuse.org 
dnsbl.njabl.org dnsbl.sorbs.net list.dsbl.org multihop.dsbl.org 
multihop.dsbl.org"

if [ -z $1 ]; then
echo "[*] Not enough parameters. use: $0 [ip]. Exiting."
exit;
fi

echo "[*] Setting up query transaction"
ACL=$(echo $1|cut -d"." -f1)
BCL=$(echo $1|cut -d"." -f2)
CCL=$(echo $1|cut -d"." -f3)
DCL=$(echo $1|cut -d"." -f4)
RBLHOST="$DCL.$CCL.$BCL.$ACL"
if [ $ACL -gt "255" ] || [ $BCL -gt "255" ] || [ $CCL -gt "255" ] || [ 
$DCL -gt "255" ]; then
echo "[*] Invalid IP"
echo "[*] Exiting."
exit;
fi

echo "[*] Performing query..."
echo "[*]"


for i in $RBLS; do
echo "[*] Checking $i"
OUTPUT1=$(nslookup $RBLHOST.$i|grep -v "#"|grep Address|awk '{ print $2 }')
if [ "$OUTPUT1" ]; then
LISTED="$i $LISTED"
else
NLISTED="$i $NLISTED"
fi
done
echo "[*]"
echo "[*] Queries complete."

if [ -z "$LISTED" ]; then
echo "[*] Congratulations. You are not listed on any of the configured RBLs"
exit;

else
echo "[*]"
echo "[*] WARNING: You are listed in the following RBLs:"
echo "[*] $LISTED"
echo "[*] CONSIDER THIS A PROBLEM!"
fi

---------------------------------------------------------------------------
This list is sponsored by: Norwich University

EARN A MASTER OF SCIENCE IN INFORMATION ASSURANCE - ONLINE
The NSA has designated Norwich University a center of Academic Excellence 
in Information Security. Our program offers unparalleled Infosec management 
education and the case study affords you unmatched consulting experience. 
Using interactive e-Learning technology, you can earn this esteemed degree, 
without disrupting your career or home life.

http://www.msia.norwich.edu/secfocus
---------------------------------------------------------------------------