I see the same thing! I don't use the stock email app and can't prevent it from running. I also see "Simple alarm clock" running, which appears to be for a (new?) widget that I'm not using.
I stopped the "Simple Alarm Clock" app from running, don't remember exactly what I needed to do, disable or uninstall it. Or just stop it and clear its data.
But the "email" app still continues to run, even though I never use it, an annoying mystery. I'm also seeing a "VZWAPN" app running, but I'm not sure what it does, so I'm just leaving it for the moment.
The Verizon Voicemail app comes up every once in a while, though I don't use that at all, either. I can stop it for a while, but it's one of the ones that always comes back sooner or later. I'm using Google Voice for voicemail, so it's annoying to see that running, but it was doing that before the update. I try to ignore it *smile*.