Not a whole lot new in this but we can confirm Chelsea's email address is aj66@nyu.edu, which can make searching other emails easier. It seems there is a 'someone who shall not be named' that many are frustrated with. I've noted this in several emails, they reference someone who they won't name (overtly not name like in this email)-- could that be Hillary or maybe Hillary's Huma?
Also, John Podesta and Cheryl Mills are also close confidants to Chelsea, not just to her dad.