public function SendValidationEmail($firstname, $lastname, $eMail, $facebookid)
 {
     $db = new DB_Access();
     $apiConsumer = new F1Api();
     $found_individuals = $apiConsumer->peopleSearch($firstname, $lastname, $eMail);
     $guid = Util::getGuid();
     if (sizeof($found_individuals) > 0) {
         $db->SaveUserActivationCode($facebookid, $eMail, $guid, $found_individuals[0]);
     } else {
         $db->SaveUserActivationCode($facebookid, $eMail, $guid);
     }
     // Email Initialize
     ini_set("SMTP", AppConfig::$SMTP);
     ini_set('sendmail_from', AppConfig::$FromAddress);
     $Name = AppConfig::$SenderName;
     //senders name
     $email = AppConfig::$FromAddress;
     //senders e-mail adress
     $recipient = $eMail;
     //recipient
     $mail_body = "Please click the following link to validate your e-mail address.\n\n" . AppConfig::$app_url . '/validateemail.php?code=' . $guid;
     $subject = AppConfig::$app_name . ': E-mail Validation';
     //subject
     $header = "From: " . $Name . " <" . $email . ">\r\n";
     //optional headerfields
     mail($recipient, $subject, $mail_body, $header);
     //mail command :)
 }