Abstract: Fleets of mobile or desktop electronic devices are sometimes wrongly unenrolled from a security and management service. They must then be reenrolled individually, from the devices themselves. To overcome this, a calling agent in each device is only partially removed or disabled upon receipt of the unenrollment instruction. The remaining portion of the calling agent is removed after a cool-off period. During the cool-off period, a persistent component of the calling agent that remains active contacts a monitoring center to check whether there is a cancellation of the unenroll instruction. If there is, the devices can be reenrolled from the monitoring center. This persistent component is designed to survive device reimaging and reinstantiates itself in such an event. This tether provides the ability to reverse unintentional device unenrollment.

Abstract: Failure detection and reporting for a computer mail gateway is provided. In a preferred embodiment, two computer mail systems are connected by a gateway. The gateway includes an automatic gateway failure detection and reporting facility. The gateway also includes a message transfer store. The facility transmits a message from the first mail system into the message transfer store for retrieval by the second mail system. The facility then detects that the transmitted message from the first mail system has remained in the message transfer store for at least a predetermined time without being retrieved by the second mail system. In response to detecting that the transmitted message from the first mail system has remained in the message transfer store for at least a predetermined time without being retrieved by the second mail system, the facility diagnoses the failure of the gateway.