PHP - error en Mailer Error: Message body empty

<?php

//PHPMailer Object

error_reporting(E_ALL ^ E_WARNING ^ E_NOTICE);

require("PHPMailer-master/class.phpmailer.php");

require("PHPMailer-master/class.smtp.php");

$mail = new PHPMailer;

$mail->IsSMTP();

# Definimos el formato del correo con UTF-8 

$mail->CharSet="UTF-8";

$mail->SMTPDebug = 1;

# autenticación contra nuestro servidor smtp

$mail->SMTPAuth = true; // enable SMTP authentication

$mail->SMTPSecure = "tls";

$mail->Host = "smtp.live.com"; // sets MAIL as the SMTP server

$mail->Port = 587;

//From email address and name

$mail->From = "alecuello84@hotmail.com";

$mail->FromName = "Alejo";

//To address and name

$mail->addAddress("alecuello84@hotmail.com", "Recepient Name");

$mail->addAddress("alecuello84@hotmail.com"); //Recipient name is optional

//Address to which recipient will reply

$mail->addReplyTo("alecuello84@hotmail.com", "Reply");

//CC and BCC

$mail->addCC("alecuello84@hotmail.com");

$mail->addBCC("alecuello84@hotmail.com");

//Send HTML or Plain Text email

$mail->isHTML(true);

$mail->Subject = "Subject Text";

$mail->Body = "Mail body in HTML";

$mail->IsHTML(true);

$mail->MsgHTML($passw);

if(!$mail->send())

{

    echo "Mailer Error: " . $mail->ErrorInfo;

}

else

{

    echo "Message has been sent successfully";

}

?>

$mail->MsgHTML("Mail body in HTML")

$smtp=new PHPMailer();

$smtp->Password = "********"; // MAIL password