Spaces are allowed; punctuation is not allowed except for periods, hyphens, apostrophes, and underscores.
A valid e-mail address. All e-mails from the system will be sent to this address. The e-mail address is not made public and will only be used if you wish to receive a new password or wish to receive certain news or notifications by e-mail.
array ( 'excluded' => array ( 'uid' => false, 'page' => false, ), )
