My T gave me his email after I had been seeing him for 8 months. He has told me if I need to reach him, email is better than phone, as he only checks his phone messages every few days, but email several times a day. I usually use email only for things like changing appointment times. Sometimes he doesn't return the emails for the appointment changes, and that can be hard. The last few days we have been emailing more than usual because there's been a lot going on for me and I needed more support. But in general, we don't do therapy type stuff by email. I am very close to him and can reveal and talk about what I need to work on face to face. Most times, at least. I would be somewhat worried that if I revealed all sorts of thing in long emails, that I would never be pushed to develop the level of comfort in therapy to do that face to face.