Sorta cheated and used the quick and easy response in the end. So it's crude but don't get paid enough to doing anything more fancy for now!
--------------------------------------------------
<FILENAME: Mailq_Check.pl>
open(STDOUT, ">mailq_check.log");
system("mailq| grep frozen");
close STDOUT;
exec(`perl mail_report.pl mailq_check.log`);
--------------------------------------------------
<FILENAME: mail_report.pl>
while (<>) {
@array = $_;
$mail_fault_cnt++;}
if ($mail_fault_cnt>0) {
exec (`more mailq_check.log| mail -s MailQ_Error sstock\@essex
+.ac.uk`);}
Originally posted as a Categorized Answer.
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