sample_postfix_init_script.sh

#!/sbin/sh
#
# Set the path to your own logger & postfix commands
# Sample SysV-style
#
LOGGER="/usr/bin/logger"
POSTFIX="/usr/sbin/postfix"
rc=0

if [ ! -f $POSTFIX ] ; then
    $LOGGER -t $0 -s -p mail.err "Unable to locate Postfix"
    exit(1)
fi
if [ ! -f /etc.postfix/main.cf ] ; then
    $LOGGER -t $0 -s -p mail.err "Unable to locate Postfix configuration"
    exit(1)
fi

case "$1" in
    start)
        echo -n "Starting Postfix"
        $POSTFIX start
        rc=$?
        echo "."
        ;;

    stop)
        echo -n "Stopping Postfix"
        $POSTFIX stop
        rc=$?
        echo "."
        ;;

    restart)
        echo -n "Restarting Postfix"
        $POSTFIX stop
        rc=$?
        echo "."
        ;;

    *)
        echo "Usage: $0 {start|stop|restart}"
        rc=1

esac
exit $rc