I am not a huge fan of email in a lot of circumstances because of the ease and implied quickness. It is way too easy for people (I am not just talking in the therapy arena here) to fire stuff off without reflection and then anxiously await a response which may or may not come. I tell my students I will respond within 48 hours - usually by the time I reply at the end of that time - they have moved on/figured it out for themselves. They often send an email because it is easier and quicker than handling it themselves.

I write the therapist, but I do not want the woman to respond. If I want a response, I call. I have not found, for me, email response from the woman to be beneficial except for scheduling. But I also like writing actual letters and think there is more benefit to doing such.