Thank you so much.  I haven't seen that feature yet and just configured my email.  The only problem is that the confirmation/code email is sent from Google, so it will not come from a registered address.   QBO will need to either allow certain email addresses globally or allow emails from non-users (more ideal).  We have many clients who would like an assistant to manage the receipt forwarding.   I'll share that feedback in the method you recommended as well.