I could not justify seeing a therapist who takes an hour to deal with one email. Imagine if she gets 8 emails in a day. Does she cancel all her appointments? Does the insurance company actually reimburse for that? It seems fraudulent to me and does not add up. Maybe it's done that way to deter clients from emailing.

I think the question/issue of confidentiality of electronic communications is that basically...nothing is private. Not even this site. So anyone communicating in this way should probably come to grips with that and accept there is risk in all electronic media.