public function createSimpleEmailMessage($from, $to, $subject, $htmlBody, $textBody, $cc = [], $bcc = [], $replyTo = [])
    {
        $instance = $this->getMessageInstance();

        $this->setupMessageHeaders($instance, $from, $to, $cc, $bcc, $replyTo);

        $instance->setSubject($subject);

        // If we do not have an HTML message
        if (empty($htmlMessage)) {
            // Message body is the text message
            $instance->setBody($textBody, 'text/plain');
        } else {
            // The main body is the HTML messahe
            $instance->setBody($htmlBody, 'text/html');

            // Use the text as a message part, if we have one.
            if (! empty($textMessage)) {
                $instance->addPart($textBody, 'text/plain');
            }
        }

        return $instance;
    }