Hi Peter, you could read the PPM documentation like what the Anonymous Monk has suggested. Also you probably need all the Mail::Box and its derived modules as well.

I have complete the code I started earlier. The additional code is an example on the kind of thing you could do with the Mail::Box::Manager module. Pretty handy I think.

#C:\Perl\bin\Perl.exe -w
use strict;
use IO::File;
use Data::Dumper;
use Mail::Box;
use Mail::Box::Manager;

# Load mail list
my $MailList = load_mail_list('./list25B6.txt');
print Dumper($MailList);

# Load folder list
my $MailFolder = load_mail_folders('./hierarch.txt');
print Dumper($MailFolder);

# Parse folder files
foreach (values %{$MailFolder}) {
    parse_mail_folder($_);
}

# Optionally output $MailList into another file, etc.

# And other things ...

exit(0);


sub parse_mail_folder
{
    my $folder_file = shift;

    my $mgr = Mail::Box::Manager->new();

    my $folder = $mgr->open($folder_file);

    my @email_addr;
    foreach my $message ($folder->messages)
    {
        my $dest = $message->get('To');  # retrieve the To-address
        @email_addr = split /,/, $dest;  # retrieve multiple addresses

        # assume the email address format is as follows -
        #
        #   John & Jenny Arnold <johnarnold@somedomain.com>
        #
        # you have to tweak a bit if the format is not as expected
        # or use the Mail::Address module to do the trick - to
        # convert the mail address into its canonical form.

        foreach (@email_addr) {
            my ($name, $addr) = /(.*)<(.*)>/;

            $name = s/^\s+//g; # trim spaces at front
            $name = s/\s+$//g; # trim spaces at rear
            $addr = s/^\s+//g; # trim spaces at front
            $addr = s/\s+$//g; # trim spaces at rear

            if (! exists $MailList->{$addr}) {
                # ok, we haven't seen this Email address yet
                $MailList->{$addr} = $name;

                # and do other things
            }
        }
    }
    $folder->close;
}

sub load_mail_list
{
    my $filename = shift;
    my $f = new IO::File $filename, "r" or die "Can not open mail list
+";
    my %mlist;

    # load the header
    chomp($mlist{title}  = <$f>);
    chomp($mlist{sender} = <$f>);
    chomp($mlist{nosig}  = <$f>);
    <$f>;

    # load the rest of the email addresses
    my %MailAddress;
    while (<$f>) {
        chomp;
        my ($name, $email) = /^(.*)\s+<(.*)>$/;
        next if $email eq '';
        $MailAddress{$email} = $name;
    }

    $mlist{mlist} = \%MailAddress;
    return \%mlist;
}

sub load_mail_folders
{
    my $filename = shift;
    my $f = new IO::File $filename, "r" or die "Can not open mail list
+";
    my %mbox;

    while (<$f>) {
        chomp;
        next unless ( $_ ne '' and m/^0,0,/ );
        s/"//g;
        my @fld = split /,/;
        my ($folder) = $fld[2] =~ /.*:.*:(.*)/;
        $mbox{$fld[-1]} = "D:/Pmail/mail/$folder.PPM"; # full path to 
+mboxes
    }
    return \%mbox;
}
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