/**
* Create a new Message.
*
* Details may be optionally passed into the constructor.
*
* @param string $subject
* @param string $body
* @param string $contentType
* @param string $charset
*/
public function __construct($subject = null, $body = null, $contentType = null, $charset = null)
{
parent::__construct($subject, $body, $contentType, $charset);
$this->setFrom(MailUtility::getSystemFrom());
}
