<http://schema.org/description>
"You might not realize it, but there are now email-tracking tools that make it easy for people to see when you open an email, what you click, and where you&amp;#039;re located. &amp;quot;Emails appear no"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.aol.com/article/2015/08/01/how-to-see-if-your-emails-are-being-tracked-in-gmail-before-open/21216953/>