通过PHPMailer发送电子邮件时身份验证错误

Following is the code that I am using for sending mail using PHPMailer but getting error.

 public function changePassword(){
   if($this->request->is('post')){
   require_once(ROOT .DS. 'vendor' . DS  . 'PHPMailer' . DS .  'class.phpmailer.php');
   $email = 'abc@gmail.com';
   $mail = new PHPMailer(); // create a new object
   $mail->IsSMTP(); // enable SMTP
   $mail->isHTML(true);
   $mail->SMTPDebug = 1; // debugging: 1 = errors and messages, 2 = messages only
   $mail->SMTPAuth = true; // authentication enabled
   $mail->SMTPSecure = 'TLS'; // secure transfer enabled REQUIRED for Gmail
   $mail->Host = "smtp.gmail.com";
   $mail->Port = 587; // or 587
   $mail->IsHTML(true);
   $mail->Username = "xyz@gmail.com";
   $mail->Password = "dead_gone";
   $mail->SetFrom("xyz@gmail.com");
   $mail->AddAddress($email);
   $mail->Subject = "password recovery";
   $mail->Body = "your password is:- sdx_12345  click here to log in <a href ='http://localhost/cake/logins'> click here  </a>  ";

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

}

ERROR:

SMTP -> ERROR: AUTH not accepted from server: 530 5.7.0 Must issue a STARTTLS command first. v3sm8416695par.17 - gsmtp SMTP Error: Could not authenticate. Mailer Error: SMTP Error: Could not authenticate.

This property is case-sensitive:

$mail->SMTPSecure = 'tls'

It would help if you based your code on the gmail example provided with PHPMailer - it's not as if you're the first to connect to gmail!

try a SSL connection over the port 465 and look at you security settings in you account from google

You should also put

$mail->IsHTML(true);

after you set your body and attachments.

Edit:

It also might be possible that TLS has to be lowercase.