In case of massive spam attack.

 #!/bin/bash
 ls /var/spool/exim/input/ > /tmp/delspoorexim
 declare -a ARRAY
 exec 10< /tmp/delspoorexim
 let count=0
 while read dels <&10; do
 rm -fr /var/spool/exim/input/$dels
 echo $dels
 ARRAY[$count]=$dels
 ((count++))
 done
 echo Number operation done: ${#ARRAY[@]}
 #echo ${ARRAY[@]}
 exec 10>&-
 rm /tmp/delspoorexim