How can the PHP Mailer library be utilized to handle email headers and timestamps more effectively?

The PHP Mailer library can be utilized to handle email headers and timestamps more effectively by setting the appropriate headers using the library's built-in functions. This can help ensure that the email is formatted correctly and includes necessary information such as the sender, recipient, subject, and timestamp.

<?php
use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\SMTP;
use PHPMailer\PHPMailer\Exception;

// Include the PHPMailer library
require 'vendor/autoload.php';

// Create a new PHPMailer instance
$mail = new PHPMailer();

// Set the necessary headers
$mail->setFrom('from@example.com', 'Sender Name');
$mail->addAddress('recipient@example.com', 'Recipient Name');
$mail->Subject = 'Subject of the email';
$mail->Body = 'Body of the email';

// Set the timestamp
$mail->MessageDate = date('D, d M Y H:i:s O');

// Send the email
if ($mail->send()) {
    echo 'Email sent successfully';
} else {
    echo 'Email could not be sent';
}