| 摘要 |
A host service queues data messages received at a message server for delivery to a wireless mobile device. The host service detects a trigger in response to an expiration of a predetermined time interval. In response to detecting the trigger when the data messages are queued, the host service attempts to authenticate a previously-received login credential of the device with respect to a predetermined authentication period. The session is active when the period has not expired, and inactive when the period has expired. When the session is inactive, the host service receives via a wireless network a new login credential from the device, authenticates the new login credential, and activates the session for data message delivery based on the authenticating of the new login credential. When the session is active, the host service causes the data messages to be sent via the wireless network to the device.
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