seems a bit over the top... I ask this, manually through AirBnB app messenger, only if I have guests staying longer than a week. I try not to bother guests plus I work from home with my dog on the premises so I get to see my guests when I mow, garden or relieve my dog. whenever I get a chance to mingle I will nonchalantly.
Your email thing, I believe you can do that with Google mail in the notification settings.
Hope this helps, Good Luck!