I am really glad email is so uncomplicated with my therapist. I find it really helpful- I tend to use it a lot to highlight areas of progress or let him know when I am feeling better after a crisis. (If I need help I don't email, I call.) For me it is very helpful to capture positive developments by email so that we can go back and discuss them in session- it helps me to see how I am improving and remind myself about what works to keep my mood strong.