Mine

find /var/qmail/queue/intd/* -exec ./mess {} \;


mess:
#!/bin/sh

mess="{/var/qmail/queue/mess/}`basename $1`"
if [ -f $mess ]; then
        echo -e "Si existe $mess \r"
else
        echo -e "No existe $mess => Borrar $1 \r"
        rm -v $1
fi