public function __construct()
{
$this->to = array();
$this->cc = array();
$this->bcc = array();
$this->replyto = array();
$this->recipientsCharset = 'UTF-8';
$this->from = null;
$this->returnpath = null;
$this->subject = null;
$this->messagetext = null;
$this->messagehtml = null;
$this->subjectCharset = 'UTF-8';
$this->messageTextCharset = 'UTF-8';
$this->messageHtmlCharset = 'UTF-8';
}