สอบถามเรื่องการส่ง email เนื่องจากลองหลายๆวิธีแล้วก็ส่งไม่ได้ครับ

<?php

		use PHPMailer\PHPMailer\PHPMailer;
		require 'config/vendor/autoload.php';

		$mail = new PHPMailer;

		$mail->isSMTP();
		$mail->SMTPDebug = 2;
		$mail->Host = 'smtp.gmail.com';
		$mail->Port = 587;
		$mail->SMTPSecure = 'tls';
		$mail->SMTPAuth = true;
		$mail->Username = "[email protected]";
		$mail->Password = "*****";
		$mail->setFrom('[email protected]', 'First Last');
		$mail->addReplyTo('[email protected]', 'First Last');
		$mail->addAddress('[email protected]', 'John Doe');
		$mail->Subject = 'PHPMailer GMail SMTP test';
		$mail->msgHTML("666");
		$mail->AltBody = 'This is a plain-text message body';
		if (!$mail->send()) {
		    echo "Mailer Error: " . $mail->ErrorInfo;
		} else {
		    echo "Message sent!";
		}
		?>