public function setQPDotEscape($dotEscape)
{
$dotEscape = !empty($dotEscape);
Swift_DependencyContainer::getInstance()->register('mime.qpcontentencoder')->asNewInstanceOf('Swift_Mime_ContentEncoder_QpContentEncoder')->withDependencies(array('mime.charstream', 'mime.bytecanonicalizer'))->addConstructorValue($dotEscape);
return $this;
}