Client/Reseller – At this level, clients get the domain creation rights. Also they can administer groups of domains using a single login. Please see the "Client / Reseller" demo below for more details.
Domain Owner – The individual domain owner accounts come with predetermined permission sets and interface for single domain administration. Please see the "Domain Owner" demo below.
Mail User – The individual mail account level which allows the user to log in to their own private interface and manage passwords, spam filters, anti-virus settings and much more.