Parallels Plesk is a comprehensive control panel solution used by leading hosting providers worldwide for shared, virtual and dedicated hosting. The control panel is designed to simplify the management and administration of web sites. Plesk control panel automates a large number of tasks that allow service providers to reduce operating costs and resources while at the same time increasing profitability, efficiency and customer satisfaction. There are four login levels in Plesk with each level having its appropriate roles and responsibilities: 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 and 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.