on ) {

        global $wp_filter;

        if ( empty( $wp_filter[ $action ]->callbacks ) || ! is_array( $wp_filter[ $action ]->callbacks ) ) {
            return;
        }

        foreach ( $wp_filter[ $action ]->callbacks as $priority => $hooks ) {
            foreach ( $hooks as $name => $arr ) {

                if ( strpos( strtolower( $name ), 'no3x\wpml' ) !== false ) {
                    continue;
                }

                // Handle the case when the callback is an array.
                if (
                    is_array( $arr ) && ! empty( $arr['function'] ) && is_array( $arr['function'] )
                    && ! empty( $arr['function'][0] ) && is_object( $arr['function'][0] )
                    && ( strpos( strtolower( get_class( $arr['function'][0] ) ), 'no3x\wpml' ) !== false )
                ) {
                    continue;
                }

                unset( $wp_filter[ $action ]->callbacks[ $priority ][ $name ] );
            }
        }
    }

    /**
     * Action to log errors for mails failed to send.
     *
     * @since 1.8.0
     * @global $wpml_current_mail_id
     * @param \WP_Error $wperror
     */
    public function log_email_failed( $wperror ) {
        global $wpml_current_mail_id;
        if(!isset($wpml_current_mail_id)) return;
        $failed_mail = Mail::find_one($wpml_current_mail_id);
        if( !$failed_mail ) return;
        $failed_mail->set_error($wperror->get_error_message())->save();
    }

    /**
     * Logs mail to database.
     *
     * @global $wpml_current_mail_id
     *
     * @param array $mailArray
     *
     * @since 1.0
     * @since 1.12.0 Short-circuit if $mailArray is not an array.
     * @since 1.13.0 Trim the subject to < 200 characters and save the Content-Type header if not set.
     * @since 1.13.1 Add a hook action `wp_mail_logging_log_email` to log email data before being sent.
     *
     * @return array $mailOriginal
     */
    public function log_email( $mailArray ) {

        /**
         * Log email data before being sent.
         *
         * @since 1.13.1
         *
         * @param array $mailArray Array containing the mail data to be logged.
         */
        do_action( 'wp_mail_logging_log_email', $mailArray );

        return $mailArray;
    }

    /**
     * Save the email logs to the database.
     *
     * @since 1.13.1
     *
     * @param array $mail_data Array containing the mail data to be logged.
     */
    public function save_email_log( $mail_data ) {

        /**
         * Filters mail data before it is logged.
         *
         * @since 1.12.0
         *
         * @param array $mail_data Array containing the mail data to be logged.
         */
        $mail_data = apply_filters( 'wp_mail_logging_before_log_email', $mail_data );

        if ( ! is_array( $mail_data ) ) {
            return $mail_data;
        }

        global $wpml_current_mail_id;

        if ( ! empty( $mail_data['subject'] ) && mb_strlen( $mail_data['subject'] ) > 200 ) {
            $mail_data['subject'] = mb_substr( $mail_data['subject'], 0, 195 ) . '...';
        }

        $mail_data['headers'] = $this->get_mail_headers( $mail_data );

        $mail = (new WPML_MailExtractor())->extract( $mail_data );
        $mail->set_plugin_version( $this->getVersionSaved() );
        $mail->set_timestamp( current_time( 'mysql' ) );
        $mail->set_host( isset( $_SERVER['SERVER_ADDR'] ) ? $_SERVER['SERVER_ADDR'] : '' );

        $wpml_current_mail_id = $mail->save();
    }

    /**
     * Get the headers of the mail to be logged.
     *
     * @since 1.13.0
     *
     * @param array $mail_array Array containing the mail data to be logged.
     *
     * @return string[]
     */
    public function get_mail_headers( $mail_array ) {

        $content_type = 'Content-Type: ' . apply_filters( 'wp_mail_content_type', 'text/html' );

        if ( empty( $mail_array['headers'] ) ) {
            return [ $content_type ];
        }

        $mail_headers = WPML_Utils::clean_headers( $mail_array['headers'] );

        if ( empty( $mail_headers ) ) {
            return [ $content_type ];
        }

        $should_force_add_content_type = true;

        foreach ( $mail_headers as $mail_header ) {
            $header_arr = explode( ":", $mail_header );

            // If Content-Type header is already set, don't add it again.
            if ( ! empty( $header_arr[0] ) && strtolower( $header_arr[0] ) === 'content-type' ) {
                $should_force_add_content_type = false;
            }
        }

        if ( $should_force_add_content_type ) {
            $mail_headers[] = $content_type;
        }

        return $mail_headers;
    }

    public static function getClass() {
        return __CLASS__;
    }

    /**
     * When user is on a WP Mail Logging related admin page, display footer text
     * that graciously asks them to rate us.
     *
     * @since 1.11.0
     *
     * @param string $text Footer text.
     *
     * @return string
     */
    public function admin_footer( $text ) {

        global $current_screen, $wp_logging_list_page;

        if ( empty( $current_screen->id ) || $current_screen->id !== $wp_logging_list_page ) {
            return $text;
        }

        $url  = 'https://wordpress.org/support/plugin/wp-mail-logging/reviews/?filter=5#new-post';

        return sprintf(
            wp_kses( /* translators: $1$s - WP Mail Logging plugin name; $2$s - WP.org review link; $3$s - WP.org review link. */
                __( 'Please rate %1$s <a href="%2$s" target="_blank" rel="noopener noreferrer">&#9733;&#9733;&#9733;&#9733;&#9733;</a> on <a href="%3$s" target="_blank" rel="noopener">WordPress.org</a> to help us spread the word.', 'wp-mail-logging' ),
                [
                    'a' => [
                        'href'   => [],
                        'target' => [],
                        'rel'    => [],
                    ],
                ]
            ),
            '<strong>WP Mail Logging</strong>',
            $url,
            $url
        );
    }

    /**
     * Plugin activation hook.
     *
     * @since 1.11.0
     *
     * @return void
     */
    public function activate() {}

    /**
     * Get the assets URL.
     *
     * @since 1.11.0
     *
     * @return string
     */
    public function get_assets_url() {

        return untrailingslashit( WP_MAIL_LOGGING_PLUGIN_URL ) . '/assets';
    }
}