If you are a domain administrator, you have the ability to manage FolderGrid users for your domain.

To remove a user, select "Manage Users" from the "Admin Tools" menu on the top menu bar. Select a user from the listing and then click "Delete."  

It is important to understand that to ensure appropriate attribution of auditing actions - FolderGrid never fully removes a User record. The "Delete" operation simply disables the user account preventing that user from accessing your domain with those credentials.

A "deleted" user may be reinstated by using the "Add" operation with the same email address. You may wish to force a password reset after reenabling any user account. To do so, simply activate the "Password Expired" column and set it appropriately for the reactivated user.