Need to know what native email app runs as on android 5.1.1 (com.samsung....etc"

I'm trying to set up a device policy using Kiosk mode for XenMobile. We have allowed apps when the device gets put into kiosk mode on Samsung Note Tablets, running Android 5.1.1
I having trouble getting the native email client to show up. I've tried the following.
com.samsung.android.email.provider
com.samsung.android.email.sync
com.samsung.android.email.widget

Anyone know what the native email app runs as? I'm not looking for Gmail. Just the native email app that you can connect to exchange with.

Thanks.

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