Q: How to manage child's email in family share

I just set up family share but the emails from my wife and grandparents are not getting through to my daughter, they instead are ending up in my inbox even though they are addressed to her.  How / where do I manage the email settings for my daughter so that I can control who she can send email to and receive email from?  She gets email from me just fine but only when I use the email that is associated with the family share.  Can she only receive email from people in the family?