Reply by typing
We have created Speaking Email with safe driving in mind. Therefore, it is not designed for typing email responses. There is an instant reply feature for sending a basic 'thanks' etc to an email. For any emails needing detailed reply, your email can be flagged for later.
You can set up your own instant reply options - up to 10 - which can be up to 200 characters.
Update 2019: we've recently enabled editing your dictated reply by typing. Tap on the reply text to edit it using the keyboard. This feature should not be used when driving, but it was requested by users who are visually impaired. We may lock this down in future.