Yes, it is possible.
Related:
Invite Users without Email Addresses (Web Browser)
Notes on not registering an email address
- Users will not be able to receive E-mail notifications, including emails containing the initial Login information for the Teachme series.
Administrators should inform account users of their Account name and Password by some other means. - If the login password is forgotten, the user will not be able to change or Reset it themselves and will need to contact an administrator.
- Users will not be able to receive any notification emails from the Teachme series.
- Users cannot become administrators, such as administrators or folder administrators.
If you wish to receive notifications without registering an email address
For products with a notification feature in the mobile app, please consider using "Information on Updates" or "push notifications."
Please note, however, that the information delivered via mobile app notifications is limited.