mail.php

<?php
require_once 'includes/psl-config.php';
// Import PHPMailer classes into the global namespace
// These must be at the top of your script, not inside a function
use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\SMTP;
use PHPMailer\PHPMailer\Exception;

// Load Composer's autoloader
require 'mailer/autoload.php';

// Instantiation and passing `true` enables exceptions
$mail = new PHPMailer();

    //Server settings
  // $mail->SMTPDebug = SMTP::DEBUG_SERVER;                      // Enable verbose debug output
    $mail->IsSMTP();                                          // Send using SMTP
    $mail->Host = 'smtp.gmail.com';                    // Set the SMTP server to send through
    $mail->SMTPAuth = true;                                   // Enable SMTP authentication
    $mail->Username = 'matelasluxalgerie@gmail.com';                     // SMTP username
    $mail->Password = 'qvqigwxlxwbcpamr';                               // SMTP password
    $mail->SMTPSecure = 'ssl';        // Enable TLS encryption; `PHPMailer::ENCRYPTION_SMTPS` encouraged
    $mail->Port = 465;                                  // TCP port to connect to, use 465 for `PHPMailer::ENCRYPTION_SMTPS` above


// Content
$mail->isHTML(true);  
$mail->CharSet = "UTF-8";

?>