Edit file File name : MailCatcherV6.php Content :<?php namespace WPMailSMTP; use PHPMailer\PHPMailer\Exception; /** * Class MailCatcher replaces the \PHPMailer\PHPMailer\PHPMailer introduced in WP 5.5 and * modifies the email sending logic. Thus, we can use other mailers API to do what we need, or stop emails completely. * * @since 2.2.0 */ class MailCatcherV6 extends \PHPMailer\PHPMailer\PHPMailer implements MailCatcherInterface { use MailCatcherTrait; /** * Callback Action function name. * * The function that handles the result of the send email action. * It is called out by send() for each email sent. * * @since 2.2.0 * * @var string */ public $action_function = '\WPMailSMTP\Processor::send_callback'; /** * Which validator to use by default when validating email addresses. * We are using built-in WordPress function `is_email` to validate the email address. * * @see PHPMailer::validateAddress() * * @since 3.6.0 * * @var string|callable */ public static $validator = [ Processor::class, 'is_email_callback' ]; /** * Get the PHPMailer line ending. * * @since 2.2.0 * * @return string */ public function get_line_ending() { return static::$LE; // phpcs:ignore WordPress.NamingConventions.ValidVariableName.UsedPropertyNotSnakeCase } /** * Throw PHPMailer exception. * * @since 4.0.0 * * @param string $error Error message. * * @throws Exception PHPMailer exception. */ protected function throw_exception( $error ) { throw new Exception( $error ); } } Save