Hi,
Thank you for contacting us.
The email field is primary email field of the contact form. It can be edited in the field section on back-end. Placeholder in this field is not yet available, we will fix it in our very next update.
Regarding the value, it is pre-populate with the value of user’s email address only if a user is logged into WordPress. It will not be filled if user is logged-out.
Let me know if I can be of further assistance. ??
