public function send()
    {
        if (!$this->validate()) {
            return $this->getErrors();
        }

        foreach ($this->multipleRecipients as $to) {
            $email_copy = clone $this;
            if (is_array($to)) {
                $email_copy->to_email = $to['email'];
                $email_copy->to_name = $to['name'];
            } else {
                $email_copy->to_email = $to;
                $email_copy->to_name = '';
            }
            $email_copy->save(false);
        }
        return true;
    }