#!/usr/bin/perl
# Simple script for catching email bounces

use strict;
use Email::Simple;

# Configuration

    my @valid_email = qw( pete@clueball.com sheriff@linuxufo.com );
    my $modify_subj = 1;

# Gubbins

    my $email_source = join '', (<>);
    my $email = Email::Simple->new($email_source);

    my ( $subject, $to ) = ($email->header("Subject"), $email->header(
+"To"));

    unless (
            ( $email->header("Return-path") eq '<>' ) ||
            ( $email->header("Auto-Submitted") ) ||
            ( $email->header("Return-path") =~ m/MAILER-DAEMON\@/i )  
+  ||    
            ( $email->header("Sender") =~ m/^CompuServe Postmaster/) |
+|
            (
                ($email->header("From") =~ m/postmaster\@/) &&
                ( $email->header("Subject") =~ m/Undeliverable/ )
            )
        ) {

        dump_mail();
    }

    for ( @valid_email ) {

        my $email_address = quotemeta $_;

        dump_mail() if $to =~ m/$email_address/i;

    }

    $email->header_set("Subject", "[Bounced: $to]");
    $email->header_set("X-SpamBounce", $to);

    dump_mail();

# Return mail

    sub dump_mail {

        print $email->as_string;
        exit;

    }

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