public function listSubscribe($first_name, $last_name, $email, $listID, $phone = null, $fax = null, $data = null)
{
$result = RestCurl::post(self::URL_PREFIX . $this->maropost_account_id . '/lists/' . $listID . '/contacts', array('auth_token' => $this->maropost_auth_token, 'first_name' => $first_name, 'last_name' => $last_name, 'email' => $email, 'phone' => (int) $phone, 'fax' => (int) $fax, 'custom_field' => $data));
$this->logger->debug('Response: ' . print_r($result, true));
return $result['data'];
}
