Abstract: Methods and systems for creating a full-featured, individually customized email system by allowing end-users of an electronic mail system to extend standard electronic mail protocol for the creation of user-defined commands that are recognizable and executable by an electronic mail system and that can alter processing performed after a server accepts a piece of electronic mail. Routine events are raised during the communication of information and processing of data that give rise to the execution of registered commands. The commands are registered in an event-binding database and include standard commands and user-defined commands that are executed according to priority.

Abstract: Methods and systems for creating a full-featured, individually customized email system by allowing end-users of an electronic mail system to extend standard electronic mail protocol for the creation of user-defined commands that are recognizable and executable by an electronic mail system and that can alter processing performed after a server accepts a piece of electronic mail. Routine events are raised during the communication of information and processing of data that give rise to the execution of registered commands. The commands are registered in an event-binding database and include standard commands and user-defined commands that are executed according to priority.

Abstract: The present invention is a technique for doing an asynchronous, breadth-first expansion of e-mail distribution lists, while being able to control the amount of resources needed to complete the expansion operation. The breadth first DL expansion technique described here correctly handles circular references while expanding distribution lists asynchronously, in a breadth-first fashion, and without requiring large amount of resources. The present invention provides a mechanism to control how many lookup requests are performed in parallel and the maximum amount of memory resources required to complete the DL expansion.