My T doesn't charge for emails and I am confident if he did he'd communicate that to me. Whenever I pay more than the session fee he applies it to any balance I owe and I have a credit. We don't rally talk about it he just doesn't accept it.

There have been times when we weren't officially meeting when I'd email him and I wished he charged. I think it would have made me feel more equal and less dependent in some way, like a clear reminder that he is working for me. Without paying him for all the emails at that time it felt like I was taking way more than I should have, but he was very responsive. Financially I am glad to save lots of money my many emails would be costing me.