Possible to do registration confirmation emails?

I searched docs and forum, but didn’t find anything on this.

QUESTION 1: Is it possible natively in BF Pro Forms to handle confirmation emails when users’ register? I can’t allow just anyone to register on target site. Need it to send them email with verification link.

If that’s not a built-in option, maybe I could do a password-reset form immediately after the user registers (and not show password first assigned)?

I also need to add code that will lookup user email address in an external database when they register, but assume I can use a WP hook for that.

QUESTION 2: For registration/logins, I just want to use email address – not username. Can email address be assigned to username upon registration? (If that’s not a native BF thing, I’m sure some custom code can handle it.)