#!/usr/bin/perl -w

use strict;
use Mail::Bulkmail;
use Mail::AddressSort;
use File::Spec::Functions;
use Getopt::Std;

my %default = (
    dir          => 	".",
    addrfile     => 	"addresslist.txt",
    mailfile     => 	"mail.txt",
    errorlog     => 	"error.log",
    successlog   => 	"success.log",
    subject      => 	q(Default subject),
    fromaddr     => 	q(email@domain.com),
);

getopts('a:d:e:hf:l:m:s:', \my %option);

$option{h} && die << "HELPMSG";
usage: bulkmail [-a addrfile] [-d directory] 
                [-e errorlog] [-h]
                [-f fromaddr] [-l successlog] 
                [-m mailfile] [-s subject]

          All files must reside in the same directory.

defaults: -a $default{addrfile}    -d $default{dir}  
          -e $default{errorlog}    -f $default{fromaddr}  
          -l $default{successlog}  -m $default{mailfile}
          -s $default{subject}
HELPMSG


my $dir = $option{d} || $default{dir};

open(my $listfile,"<",catdir($dir, $option{a} || $default{addrfile})) 
	or die "Couldn't open address list: $!\n";
chomp(my @address = <$listfile>);
close $listfile;

my $list=Mail::AddressSort->new();
$list->input(@address);
(@address)=$list->sorted();

open(my $mailfile,"<",catdir($dir, $option{m} || $default{mailfile})) 
	or die "Couldn't open message file: $!\n";
read  $mailfile, my $mail, -s $mailfile;
close $mailfile;

my $bulk = Mail::Bulkmail->new(
      'LIST'      => \@address,
      'Message'   => $mail,
      'From'      => $option{f} || $default{fromaddr},
      'Reply-to'  => $option{f} || $default{fromaddr},
      'Subject'   => $option{s} || $default{subject},
      'BAD'       => catfile($dir, $option{e} || $default{errorlog}),
      'GOOD'      => catfile($dir, $option{l} || $default{successlog}),
      'ERRFILE'   => catfile($dir, $option{e} || $default{errorlog}),
      'HTML'      => 1,
      'use_envelope' => 1,
      'envelope_limit'=> 1000     
) or die Mail::Bulkmail -> error();


$bulk->header(qw(Content-type: text/html));
$bulk->bulkmail;