#!/bin/sh
FILTER_DIR=/home/vacation
SENDMAIL="/usr/sbin/sendmail -i"
EX_TEMPFAIL=75
EX_UNAVAILABLE=69

trap "rm -f in.$$" 0 1 2 3 15

cd $FILTER_DIR || { echo $FILTER_DIR does not exist; exit $EX_TEMPFAIL; }

cat > in.$$ || { echo Cannot save mail to file; exit $EX_TEMPFAIL; }

/home/vacation/vacation.pl < in.$$ || { echo Message content rejected; exit $EX_UNAVAILABLE; }

$SENDMAIL "$@" < in.$$

exit $?