Phpmailler yardım

<?php

// example on using PHPMailer with GMAIL 

include("class.phpmailer.php");
include("class.smtp.php");

$mail=new PHPMailer();

$mail->IsSMTP();
$mail->SMTPAuth   = true;                  // enable SMTP authentication
$mail->SMTPSecure = "ssl";                 // sets the prefix to the servier
$mail->Host       = "smtp.gmail.com";      // sets GMAIL as the SMTP server
$mail->Port       = 465;                   // set the SMTP port 

$mail->Username   = "mail@gmail.com";  // GMAIL username
$mail->Password   = "sifre";            // GMAIL password

$mail->From       = "mail@hotmail.com";
$mail->FromName   = "Webmaster";
$mail->Subject    = "This is the subject";
$mail->Body       = "Hi,<br>This is the HTML BODY<br>";                      //HTML Body
$mail->AltBody    = "This is the body when user views in plain text format"; //Text Body

$mail->WordWrap   = 50; // set word wrap

$mail->AddAddress("noreply@host.com","First Last");
$mail->AddReplyTo("mail@hotmail.com","Webmaster");

$mail->IsHTML(true); // send as HTML

if(!$mail->Send()) {
  echo "Mailer Error: " . $mail->ErrorInfo;
} else {
  echo "Message has been sent";
}

?>