Abstract: According to the present invention, methods, apparatus, and computer readable medium are disclosed for defining a virtual domain in an electronic messaging system are disclosed. A virtual domain node is defined that corresponds to a real (non-virtual) domain. The virtual domain node resided in a hierarchically organized directory. A plurality of virtual domain attributes are then assigned to the virtual domain node. The directory is a tree based hierarchical directory arranged in such a way even in a multiple domain environment, a name search operation is executed as if in a flat name space.

Abstract: A messaging system capable of providing monitoring capabilities of mail services provided by a mail server is disclosed. Monitoring of mail services can be done automatically without requiring a local administrator to have knowledge about the specific implementation details about mail services that are provided by the mail server. In addition, the messaging system provides the ability to perform a variety of monitoring tasks remotely.

Abstract: A method and apparatus are disclosed for handling an input event directed to a thread within a process operating in a multi-threaded system. A process is alerted that an input event effecting one of its active connection threads has been received. An input polling thread in the process is enabled and is used, in conjunction with other thread-specific data, to determine which of the threads in the process has an event directed to it. That thread is then triggered to handle the input event. The active connection thread receiving the input event is assigned a light weight process to execute only after it is determined that the thread requires it to process the input event. The input polling thread for a process detects input events for its process and causes the appropriate connection thread in the process to be assigned a light weight process when the connection thread needs it to execute. This greatly reduces the number of light weight processes assigned to threads in a multi-threaded operating system.

Abstract: Precedence rules that govern the granting of user level services for a domain in a shared mail server for an email provider are disclosed. Accordingly, when a request for the user level service is made, a determination is made whether or not the requested service is a member of a proper set of allowed domain level services. If the requested user level service is within the proper set of allowed domain level services, then the requested user level service is granted. In so doing, the granted user level service becomes a member of the proper subset of the set of allowed domain level services for the shared mail server.