How do I sync the attachment and the body outputs from MIME::parser?

The bottomline is that I want to parse through dozens of emails and link up attachments to the corresponding parsed bodies of the email.

I can modify the name of the MIME::Parser body output but NOT the attachment output since the following does not sync with the attachment subentity:

$parser->output_prefix("$i___")

What do I do??? Thanks!!!

Here is my code:

#!/usr/bin/perl

use strict;
use warnings;
use Mail::POP3Client;
use MIME::Parser;

my $pop = new Mail::POP3Client(
                 USER     => 'joeCool',
                 PASSWORD => 'peanuts',
                 HOST     => 'pop.gmail.com',
             USESSL   => 1
);

my $fh = new IO::Handle();
my $parser = new MIME::Parser;

for (my $i = 1; $i <= $pop->Count(); $i++) {
   open (OUT, ">msg-$i.msg");
   $fh->fdopen( fileno(OUT), "w" );
   $pop->HeadAndBodyToFile( $fh, $i );
   close OUT;
   $parser->output_prefix("$i___");
   my $entity = $parser->parse_open("msg-$i.msg");
}

$pop->close();
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