{
    $OUT = '';

    my $local_handler = "alias-localdelivery";

    use esmith::DomainsDB;
    my $domainsdb = esmith::DomainsDB->open_ro();

    for my $domain ($domainsdb->domains)
    {
        my $mail_server = $domain->prop('MailServer')
                          || $DelegateMailServer
                          || 'localhost';

        next if ( $mail_server ne 'localhost' );

	$domain = $domain->key;
	$OUT .= "$domain:$local_handler\n";
    }
}
