I would take it as it seems, she is happy to receive communication if you want to. Maybe she sees it is easier for you to get out your thoughts etc by email. I know it is for me and my T seems happy with it though my self doubt sure does creep in sometimes.

Maybe just go with it for now and try to see how you both feel with it. If she is open to talking about things like your relationship and contact agreements, boundaries etc it will make it easier.