Yes, Admins can enable Request Access. Then new users can Request Access directly on the login page and fill in a form with essential information for you to grant or deny access. You’re able to define which kind of information is important for deciding on an access grant or denial. Configure your Request Access settings by:

There you have the possibility to add, and remove fields as you wish. Once the new user has sent the form, all information will be delivered to your email for review. See here to learn more.