Contao\Email::__set PHP Method

    public function __set($strKey, $varValue)
    {
        switch ($strKey) {
            case 'subject':
                $this->strSubject = preg_replace(array('/[\\t]+/', '/[\\n\\r]+/'), array(' ', ''), $varValue);
                break;
            case 'text':
                $this->strText = \StringUtil::decodeEntities($varValue);
                break;
            case 'html':
                $this->strHtml = $varValue;
                break;
            case 'from':
                $this->strSender = $varValue;
                break;
            case 'fromName':
                $this->strSenderName = $varValue;
                break;
            case 'priority':
                switch ($varValue) {
                    case 1:
                    case 'highest':
                        $this->intPriority = 1;
                        break;
                    case 2:
                    case 'high':
                        $this->intPriority = 2;
                        break;
                    case 3:
                    case 'normal':
                        $this->intPriority = 3;
                        break;
                    case 4:
                    case 'low':
                        $this->intPriority = 4;
                        break;
                    case 5:
                    case 'lowest':
                        $this->intPriority = 5;
                        break;
                }
                break;
            case 'charset':
                $this->strCharset = $varValue;
                break;
            case 'imageDir':
                $this->strImageDir = $varValue;
                break;
            case 'embedImages':
                $this->blnEmbedImages = $varValue;
                break;
            case 'logFile':
                $this->strLogFile = $varValue;
                break;
            default:
                throw new \Exception(sprintf('Invalid argument "%s"', $strKey));
                break;
        }
    }