Abstract: An n-tier configured Internet Message Access Protocol (IMAP) compliant mail server. A collaborative messaging application can include an IMAP compliant mail server configured for operation within an n-tier enterprise environment provided by an application server. The collaborative messaging application also can include a markup language driven interface to the IMAP compliant mail server disposed within a Web container in the application server. A data store can be configured to store messages process by the IMAP compliant mail server. Finally, a directory can be configured to provide configuration and addressing data to the IMAP compliant mail server. Importantly, the IMAP compliant mail server can include a set of platform independent classes programmed for execution in a virtual machine and specifically operable in the n-tier enterprise environment. In particular, the virtual machine can be a Java virtual machine and the n-tier enterprise environment can include J2EE.

Abstract: A notification subscription application allows a subscriber to maintain event notification continuity in a load-balanced work environment. The notification subscription application proactively provides the subscriber notifications indicating an operating status of the subscription. In this manner, subscribers can reduce the number of missed event notifications, by readily reestablishing a subscription when required. The notification service associates markers with events such that event notifications occurring during a period of time when the notification subscription is not operating properly can be identified when the subscription is reestablished.

Abstract: A notification subscription application allows a subscriber to maintain event notification continuity in a load-balanced work environment. The notification subscription application proactively provides the subscriber notifications indicating an operating status of the subscription. In this manner, subscribers can reduce the number of missed event notifications, by readily reestablishing a subscription when required. The notification service associates markers with events such that event notifications occurring during a period of time when the notification subscription is not operating properly can be identified when the subscription is reestablished.