Abstract: In one example, a client and a server may communicate with each other using a control channel and a data channel. The control channel carries requests from the client to the server, and the data channel carries the server's response to these requests. Some requests submitted on the control channel may be assigned identifiers, so as to be addressable. A client may submit, over the control channel, a request to cancel previously-made requests. A cancelation request uses the identifiers associated with the previously-made requests to identify the request(s) to be canceled. The client may open the control and data channels by issuing POST and GET requests, respectively, to the server. Control channel communications may then be sent as part of the POST message, and data channel communications may be sent as responses to the GET request.

Abstract: In one example, a client and a server may communicate with each other using a control channel and a data channel. The control channel carries requests from the client to the server, and the data channel carries the server's response to these requests. Some requests submitted on the control channel may be assigned identifiers, so as to be addressable. A client may submit, over the control channel, a request to cancel previously-made requests. A cancelation request uses the identifiers associated with the previously-made requests to identify the request(s) to be canceled. The client may open the control and data channels by issuing POST and GET requests, respectively, to the server. Control channel communications may then be sent as part of the POST message, and data channel communications may be sent as responses to the GET request.

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.