Aruba Clearpass Tips: How to restrict Guests from using their personal email for self registration

We need to write a small ARRAY statement to deny and allow. Example below:   array ( 'deny' => array ( 0 => 'gmail.com', 1 => 'YAHOO.com', 2 => 'hotmail.com', ), 'allow' => array ( ), )     Where to pass this argument to a validator in ClearPass guest ? Look below 1. Navigation [...]