public static function factory(EventRegistration $registration) {
		$email      = new self();
		$siteconfig = SiteConfig::current_site_config();

		$email->setTo($registration->Email);
		$email->setSubject(sprintf(
			'Registration Details For %s (%s)',
			$registration->Event()->Title,
			$siteconfig->Title));

		$email->populateTemplate(array(
			'Registration' => $registration,
			'SiteConfig'   => $siteconfig
		));

		singleton(get_class())->extend('updateEmail', $email, $registration);
		return $email;
	}