Sometimes you need an extra email address, but other times you just need to nuke it and start over. Here are some suggestions for how to go about that.

Given the beta nature of this feature, I am not recommending you try this with your primary email address right now; I set it up with a secondary email address I barely used before. I would advise ...

You don't even need to open up the Mail app to set up Gmail in it. What you do need to do is open up Settings and start there: Open up Settings . Tap on Apps and then tap on Mail . Tap Mail Accounts .