How can the "Fatal error: Class not found" issue be resolved when working with PHPMail in PHP?

When encountering the "Fatal error: Class not found" issue in PHPMail, it typically means that the required class for PHPMail is not being properly included or autoloaded in the script. To resolve this, make sure to include the necessary PHPMailer class file at the beginning of your script using the require_once() function.

// Include the PHPMailer class file
require_once 'path/to/PHPMailer/PHPMailer.php';

// Your PHPMail code here