public function deleteSecondaryDnsDomains($domain, $domain2delete){
        $domain = (string)$domain;
        if (!$domain)
            throw new BadMethodCallException('Parameter $domain is missing.');
        $domain2delete = (string)$domain2delete;
        if (!$domain2delete)
            throw new BadMethodCallException('Parameter $domain2getInfo is missing.');
        try {
            $r = $this->delete('dedicated/server/' . $domain . '/secondaryDnsDomains/'.$domain2delete)->send();
        } catch (\Exception $e) {
            throw new ServerException($e->getMessage(), $e->getCode(), $e);
        }
    }