How to Test Your WooCommerce Emails: Insights and Obstacles to Overcome

add_action( 'phpmailer_init', 'custom_phpmailer_init' );
function custom_phpmailer_init( PHPMailer $phpmailer ) {
$phpmailer->isSMTP(); // Set mailer to use SMTP
$phpmailer->Host = 'sandbox.smtp.mailtrap.io'; // Specify Mailtrap server
$phpmailer->SMTPAuth = true; // Enable SMTP authentication
$phpmailer->Port = 2525; // SMTP port
$phpmailer->Username = 'your Mailtrap username'; // Your Mailtrap username
$phpmailer->Password = 'your Mailtrap password'; // Your Mailtrap password
$phpmailer->SMTPSecure = 'tls'; // Encryption to use - 'ssl' or 'tls'
}