public function encodeMail($address)
    {
        if ($this->_getRenderer() instanceof Kwf_Component_Renderer_Mail) {
            return $text;
        }
        $address = trim($address);
        $address = preg_replace('/^(.+)@(.+)\.([^\.\s]+)$/i',
            '$1'.$this->_atEncoding.'$2'.$this->_dotEncoding.'$3',
            $address
        );
        return $address;
    }