PHPMailer tls 587

<?php
//PHPMailer page: https://github.com/PHPMailer/PHPMailer

use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\Exception;

require 'PHPMailer/src/Exception.php';
require 'PHPMailer/src/PHPMailer.php';
require 'PHPMailer/src/SMTP.php';

$mail = new PHPMailer(true); //Passing 'true' enables exceptions
try {

    $mail->CharSet = 'UTF-8';
    $mail->SMTPDebug = 2;   //0 1 2 3 4
    $mail->isSMTP();
    $mail->Host = 'mail.example.com';
    $mail->SMTPAuth = true;
    $mail->Username = 'user@example.com';
    $mail->Password = 'password';
    $mail->SMTPSecure = 'tls';
    $mail->Port = 587;
    $mail->SMTPOptions = array(
        'ssl' => array(
            'verify_peer' => false,
            'verify_peer_name' => false,
            'allow_self_signed' => true
        )
    );
    $mail->setFrom('user@example.com', 'Mailer');
    $mail->addAddress('user2@example.com', 'Example User');
    $mail->addReplyTo('info@example.com', 'Information');

    $mail->isHTML(true);
    $mail->Subject = 'Testas iš PHPMailer.';
    $mail->Body    = 'Testas iš PHPMailer. Tikriname ar veikia paštas.';
    $mail->AltBody = 'Testas is PHPMailer. Tikriname ar veikia pastas.';

    $mail->send();
    echo 'Message has been sent';
} catch (Exception $e) {
    echo 'Message could not be sent. Mailer Error: ', $mail->ErrorInfo;
}
?>