Not all therapists allow email/texts. Mine never have and I am glad for that. As far as I seen around here, too much of the time emails/texts are a good way to miscommunicate what you are trying to say and an even better way to misinterpret what you receive.

Personally, save the important stuff for session or phone calls where you can hear voice inflection and ask immediate questions. Emails are better saved for very innocuous communication such as scheduling, etc.