telnet localhost 25
ehlo
auth login
id
pw
------------------------
http://www.fehcom.de/qmail/smtpauth.htmlcd /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
-----------------------
#!/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
-----------------------