메일 인증관련 사항

telnet localhost 25
ehlo
auth login
id
pw
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http://www.fehcom.de/qmail/smtpauth.html

cd /var/qmail/bin/
-rws--x--x  1 root   qmail 275068  7월 25 15:57 checkpassword

chmod 4710 /bin/checkpassword
chgrp `id -g alias` /bin/checkpassword

/var/qmail/supervise/qmail-smtpd
vi run
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#!/bin/sh
ALIAS_UID=`id -u alias`
ALIAS_GID=`id -g alias`
exec /usr/local/bin/tcpserver -vRHl0 -x /etc/tcp.smtp.cdb \
         -u $ALIAS_UID -g $ALIAS_GID 0 25 \
         /var/qmail/bin/qmail-smtpd FOOBAR \
         /var/qmail/bin/checkpassword /bin/true 2>&1
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