freebsd-dev/etc/periodic/daily/460.status-mail-rejects
Brian Somers cd3384a7ec Adjust the mail reject output so that it gives an abreviated reason for the
reject.  For example:

Checking for rejected mail hosts:
  48 getherbalnow.info (451... resolve)
  46 absorb.com (451... resolve)
   4 tgmart01.codns.com (553... exist)
   3 kali.com.cn (451... resolve)
   2 genie.com (451... resolve)
   1 zv.qy (553... exist)
   1 zd.hinet.hr (553... exist)
   ....

The bit in parenthesis is the reject code and the last word on the line -
enough to give the admin a better chance of seeing real problems (hopefully!).

While I'm here, remove the "<" at the start of rejects coming from "from"
addresses without a name@ part.

I had to rewrite the patch given by the submitter as this script has been
sed'ified (used to be perl) and I think the reject code is useful....

PR:		17377
Idea from:	root at ns dot internet dot dk
MFC after:	7 days
2005-01-11 02:08:53 +00:00

63 lines
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#!/bin/sh
#
# $FreeBSD$
#
# If there is a global system configuration file, suck it in.
#
if [ -r /etc/defaults/periodic.conf ]
then
. /etc/defaults/periodic.conf
source_periodic_confs
fi
case "$daily_status_mail_rejects_enable" in
[Yy][Ee][Ss])
if [ ! -d /etc/mail ]
then
echo '$daily_status_mail_rejects_enable is set but /etc/mail' \
"doesn't exist"
rc=2
elif [ ! -f /var/log/maillog ]
then
echo '$daily_status_mail_rejects_enable is set but ' \
"/var/log/maillog doesn't exist"
rc=2
elif [ "$daily_status_mail_rejects_logs" -le 0 ]
then
echo '$daily_status_mail_rejects_enable is set but ' \
'$daily_status_mail_rejects_logs is not greater than zero'
rc=2
else
echo
echo Checking for rejected mail hosts:
start=`date -v-1d '+%b %e'`
n=$(($daily_status_mail_rejects_logs - 2))
rc=$({
while [ $n -ge 0 ]
do
if [ -f /var/log/maillog.$n ]
then
cat /var/log/maillog.$n
elif [ -f /var/log/maillog.$n.gz ]
then
zcat -fc /var/log/maillog.$n.gz
elif [ -f /var/log/maillog.$n.bz2 ]
then
bzcat -fc /var/log/maillog.$n.bz2
fi
n=$(($n - 1))
done
cat /var/log/maillog
} |
sed -n -E "s/^$start"'.*ruleset=check_[^ \t]+,[ \t]+arg1=<([^@]+@)?([^>,]+).*reject=([^ \t]*)[ \t].*[ \t]([a-zA-Z0-9_.]+)$/\2 (\3... \4)/p' |
sort -f | uniq -ic | sort -fnr | tee /dev/stderr | wc -l)
[ $rc -gt 0 ] && rc=1
fi;;
*) rc=0;;
esac
exit $rc