There are four login levels in Plesk with each level having its appropriate roles and r
Administrator — The highest individual server level login which allows web hosting administrators to set up and manage all system items. Multiple servers can be centrally managed with the Master level login of Plesk Expand.
Client/Reseller — Second tier login account where the users are given domain creation rights from the System
Administrator. Clients can administer to groups of domains using a single login.
Domain Owner — These are third tier individual domain owner accounts with predetermined permission sets a
nd interface for single domain administration.
Mail User — This is the fourth tier individual mail account which allows the user to log in to their own private interface and manage passwords, spam filters, anti-virus settings and much more.