It is not possible to have email attachments within Therapyappointment. Since attachments may contain computer viruses, we have significant restrictions on the sorts of files that we permit to be uploaded to our server. We may look into adding this feature in the future, if we can devise a method of avoiding contamination by computer viruses. We are REALLY serious about keeping your patient information safe.
In the meantime, if you need to send an encrypted message with an attachment, you may want to look into services like HushMail or SendInc.