#!/usr/bin/perl
$REGEXP = shift || die "no email-address given (regexp-style, e.g. bl.*\@yahoo.com)!";
@data = qx</usr/sbin/postqueue -p>;
for (@data) {
        if (/^(\w+)(\*|\!)?\s/) {
                $queue_id = $1;
        }
        if($queue_id) {
                if (/$REGEXP/i) {
                        $Q{$queue_id} = 1;
                        $queue_id = "";
                }
        }
}

#open(POSTSUPER,"|cat") || die "couldn't open postsuper" ;
open(POSTSUPER,"|postsuper -d -") || die "couldn't open postsuper" ;
foreach (keys %Q) {
        print POSTSUPER "$_\n";
};

close(POSTSUPER);