this is the format you need to follow if you are using smtp
$mail->IsSMTP(); // Set mailer to use SMTP
$mail->Host = 'smtpout.secureserver.net'; // Specify main and backup server
$mail->Port = '80';
$mail->SMTPAuth = true; // Enable SMTP authentication
$mail->Username = ''; // SMTP username
$mail->Password = ''; // SMTP password
$mail->SMTPSecure = ''; // Enable encryption, 'ssl' also accepted
$mail->From = '';
$mail->FromName = '';
$mail->AddAddress('abc@gmail.com', ''); // Add a recipient
$mail->AddReplyTo('', 'reply');
//$mail->AddCC('');
$mail->AddBCC('');
$mail->WordWrap = 50;
$mail->IsHTML(true); // Set email format to HTML
$mail->Subject = '';
$mail->Body = "<!DOCTYPE html>
<html lang='en-us'>
<head>
<meta charset='utf-8'>
<title></title>
</head>
<body>
<html>";