mail.php

<?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\Exception;
echo "H there";
// Load Composer's autoloader
require 'vendor/autoload.php';
// Instantiation and passing `true` enables exceptions
$mail = new PHPMailer(true);
try {
    //Server settings
    $mail->SMTPDebug = 2;                          //causes the random data to appear on the screen             // Enable verbose debug output
    $mail->isSMTP();                                            // Set mailer to use SMTP
    $mail->Host       = 'smtp.gmail.com';  // Specify main and backup SMTP servers
    $mail->SMTPAuth   = true;                                   // Enable SMTP authentication
    $mail->Username   = '';                     // SMTP username
    $mail->Password   = '';                              // SMTP password
    $mail->SMTPSecure = 'tls';                                  // Enable TLS encryption, `ssl` also accepted
    $mail->Port       = 587;                                    // TCP port to connect to
    //Recipients
    $mail->setFrom('ritwizsinha0@gmail.com');
    $mail->addAddress($email);     // Add a recipient
    // $mail->addAddress('ellen@example.com');               // Name is optional
    // $mail->addReplyTo('info@example.com', 'Information');
    // $mail->addCC('cc@example.com');
    // $mail->addBCC('bcc@example.com');
    // Attachments
    // $mail->addAttachment('/var/tmp/file.tar.gz');         // Add attachments
    // $mail->addAttachment('/tmp/image.jpg', 'new.jpg');    // Optional name
    // Content
    $mail->isHTML(true);                                  // Set email format to HTML
    $mail->Subject = 'Here is the subject';
    $mail->Body    = $message;
    $mail->AltBody = 'This is the body in plain text for non-HTML mail clients';
    $mail->send();
    echo 'Message has been sent';
} catch (Exception $e) {
    echo "Message could not be sent. Mailer Error: {$mail->ErrorInfo}";
}