//----------------------------------------
// Sort out the accessing IP
// (Thanks to Cosmos and schickb)
//----------------------------------------
$addrs = array();
foreach( array_reverse( explode( ',', $HTTP_X_FORWARDED_FOR ) ) as $x_f )
{
   $x_f = trim($x_f);
   if ( preg_match( '/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/', $x_f ) )
   {
      $addrs[] = $x_f;
   }
}
$addrs[] = $_SERVER['REMOTE_ADDR'];
$addrs[] = $HTTP_PROXY_USER;
$addrs[] = $REMOTE_ADDR; 

Thank you for contacting Invision Power Services, Justin has 
responded to your request. 
----------------------------------------
Hello and thank you for contacting Invision Power Services!
Unfortunately, we do not offer free technical support.  If you 
wish to receive technical support via e-mail/support tickets, 
customer forums, and telephone, please look into the two types 
of licenses we offer.  Our yearly Invision Power Board license 
costs $69.95 per year while a lifetime license costs a one-time 
fee of $199.00.
Purchasing a license not only entitles you to technical support, 
but you are also eligible for discounts on other Invision Power 
Services products (such as Invision Power Chat), as well as 
discounts on Invision Power Board plugins.  The Subscription 
Manager plugin is included free of charge for all licensed customers.
If you have any further questions, please do not hesitate to reply 
to this e-mail!
Regards,
Justin Hancock
Invision Power Services, Inc.
----------------------------------------