I'm getting two different type of err msgs, depending if I have 'CHECK_REFERER' as TRUE or FALSE. Neither seems to work for me.

Below is the code when it's set to TRUE
***********************************

define('VERSION','Classic v1.07.1');
define('MANUAL','http://www.boaddrink.com/projects/phpformmail/readme.php');
define('CHECK_REFERER', true);

$referers = array('milupana.com', '69.20.55.34');

$valid_env = array('REMOTE_HOST', 'REMOTE_ADDR', 'REMOTE_USER', 'HTTP_USER_AGENT');

$recipient_array = array('xxx' => 'xxx@milupana.com');

***********************************

Below is the err msg when it's set to TRUE
***********************************

You are coming from an unauthorized domain.

***********************************

Below is the code when it's set to FALSE
***********************************

define('VERSION','Classic v1.07.1');
define('MANUAL','http://www.boaddrink.com/projects/phpformmail/readme.php');
define('CHECK_REFERER', false);

$referers = array('milupana.com', '69.20.55.34');

$valid_env = array('REMOTE_HOST', 'REMOTE_ADDR', 'REMOTE_USER', 'HTTP_USER_AGENT');

$recipient_array = array('xxx' => 'xxx@milupana.com');

***********************************

Below is the err msg when it's set to FALSE
***********************************

Notice: Undefined index: mail_newline in D:\inetpub\WWW\milupana.com\pages\formmail.php on line 365

Warning: mail() [function.mail]: Failed to connect to mailserver at "localhost" port 25, verify your "SMTP" and "smtp_port" setting in php.ini or use ini_set() in D:\inetpub\WWW\milupana.com\pages\formmail.php on line 433
The following errors were found:

* Message could not be sent due to an error while trying to send the mail.

***********************************

I've tried different variations of the $referers = array (domain name and IP address), but to no avail.

Please advice.

Thanks in advance for your time and consideration.