public function setMessageFromURL($texturl, $htmlurl = null)
{
if ($texturl !== null) {
$this->messagetext = file_get_contents($texturl);
} else {
$this->messagetext = null;
}
if ($htmlurl !== null) {
$this->messagehtml = file_get_contents($htmlurl);
} else {
$this->messagehtml = null;
}
return $this;
}