email Meta Information Display EdgeHTML mode
Example
The IE=Edge meta tag is for telling the destination rendering engine to use the latest (edge) version of IE rendering engine, which enables responsive behavior in Windows phones.
<meta http-equiv="X-UA-Compatible" content="IE=edge">
Occasionally this breaks images in Live Mail, so since the IE=Edge tag is specific to Microsoft, it can be wrapped in a conditional comment to hide it from Live Mail:
<!--[if !mso]><!-- -->
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<!--<![endif]-->
