It's the stock email app. It's safe. You can't remove the permissions if you need to use an Exchange account with that version of the email app. If you really need to use Exchange without those permissions, there is a modded version of the app:
http://xdaforums.com/showthread.php?t=1965468
or via Xposed:
http://repo.xposed.info/module/org.flacid.exchangebypass