From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <afdad87fc500c991e1a929b127a1ba6b@9netics.com>
To: 9fans@9fans.net
Date: Fri, 24 Sep 2010 14:16:13 -0700
From: Skip Tavakkolian <9nut@9netics.com>
MIME-Version: 1.0
Content-Type: text/plain; charset="US-ASCII"
Content-Transfer-Encoding: 7bit
Subject: [9fans] smtpd integration with spamhaus
Topicbox-Message-UUID: 5a12a3b6-ead6-11e9-9d60-3106f5b1d025

has anyone noodled the idea? spamhaus provides a dns server that
that can identify if an ip address is a known spammer[1]. i was thinking
either directly in /sys/src/cmd/upas/smtp/spam.c or through a cs like
program (parsing binary in shell?)


cpue% whatis spammers
fn spammers {@ {for(i in `{callers}){echo `{revip $i}^.zen.spamhaus.org ip}}|>[2]/dev/null aux/rdwr /net.alt/dns}
cpue% whatis callers
fn callers {netstat -n /net.alt|awk '$5 == "25" && $NF ~ /.*\..*\..*\./  {print $NF}'}
cpue% whatis revip
fn revip {@ {ifs=(.^'
	');i=`{echo $1};echo $i(4)^.^$i(3)^.^$i(2)^.^$i(1)}}
cpue% spammers | grep 127
cpue% spammers | sed 10q
>
cpue% spammers
>
>
> 5.174.83.189.zen.spamhaus.org ip	127.0.0.11
>
>
>
> 16.6.16.123.zen.spamhaus.org ip	127.0.0.10
> 38.67.98.71.zen.spamhaus.org ip	127.0.0.10
...


[1] http://www.spamhaus.org/faq/answers.lasso?section=DNSBL%20Usage#202