Process flow: Sending a message to a BlackBerry device
- A message arrives in a user’s mailbox. Microsoft® Exchange notifies the BlackBerry® Messaging Agent.
- The BlackBerry Messaging Agent applies global filter rules to the messages in the user’s mailbox and filters the messages that match the filter criteria.
If no global filter rules apply, the BlackBerry Messaging Agent applies filter rules that are user defined to the messages in the user’s mailbox.
- The BlackBerry Messaging Agent sends the first 2 KB of the message (plain text, or in an HTML message, the equivalent to 2 KB of plain text) to the BlackBerry Dispatcher.
- The BlackBerry Dispatcher compresses the first 2 KB of the message, encrypts it using the device transport key of the BlackBerry device, and sends the encrypted data to the BlackBerry Router.
- The BlackBerry Router sends the encrypted data to the wireless network over port 3101, or over port 4101 if the BlackBerry device is a Wi-Fi® enabled BlackBerry device that is connected to the enterprise Wi-Fi network.
- The wireless network verifies that the PIN belongs to a valid BlackBerry device that is registered with the wireless network, and sends the message data to the BlackBerry device.
- The BlackBerry device sends a delivery confirmation to the BlackBerry Dispatcher. The BlackBerry Dispatcher
sends the delivery confirmation to the BlackBerry Messaging Agent.
If the BlackBerry Messaging Agent does not receive a delivery confirmation within four hours, it sends the message to the wireless network again.
The delivery confirmation verifies that the wireless network delivered the message to the BlackBerry device, but it does not verify that the user received or opened the message.
- The BlackBerry device decrypts and decompresses the message so that the user can view it, and notifies the user that the message has arrived.
Parent topic: Messaging process flows