User manual BLACKBERRY ENTERPRISE SERVER FOR MICROSOFT EXCHANGE - FEATURE AND TECHNICAL OVERVIEW

[. . . ] Feature and Technical Overview BlackBerry Enterprise Server for Microsoft Exchange Version: 4. 1 | Service Pack: 6 SWDT305802-456536-0708052501-001 Contents 1 New in this release. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 9 9 13 17 17 17 19 22 23 24 26 26 27 29 30 30 31 31 32 33 33 34 35 36 37 37 39 41 41 41 2 BlackBerry Enterprise Server architecture. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Architecture: BlackBerry Enterprise Server. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Architecture: BlackBerry Enterprise Server remote components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] The BlackBerry device assigns a RefId to the message. If the message is a meeting invitation or calendar entry, the BlackBerry device appends the calendar information to the message. The BlackBerry device compresses and encrypts the message, and sends the message to the wireless network over port 3101. The wireless network sends the message to the BlackBerry® Enterprise Server. The BlackBerry Enterprise Server accepts only encrypted messages from the BlackBerry device. The BlackBerry Dispatcher uses the master encryption key of the BlackBerry device to decrypt and decompress the message. If the BlackBerry Dispatcher cannot decrypt the message using the master encryption key, the BlackBerry Enterprise Server ignores the message and sends an error message to the BlackBerry device. The BlackBerry Messaging Agent sends the message to the user's email application. The BlackBerry Messaging Agent sends a copy of the message to the Sent Items view in the user's email application. The messaging server delivers the message to the recipients. 2. 7. Process flow: Sending a message that contains an attachment from a BlackBerry device 42 Feature and Technical Overview Messaging process flows 1. A user attaches a file to a message on a BlackBerry® device and sends the message. · If the BlackBerry device is not running BlackBerry® Device Software Version 4. 2 or later, and if the BlackBerry device does not have a CMIME service book that indicates that the BlackBerry® Enterprise Server supports attachment uploads, the Add Attachment menu item does not appear on the BlackBerry device. · If the user tries to attach a file that exceeds the maximum file size that an administrator specified, a notification appears and the user cannot attach the file. The BlackBerry device compresses and encrypts the message, and sends the message to the wireless network over port 3101. The BlackBerry device formats the header of the message to indicate that a large attachment is part of the message, but it does not send the attachment content. The wireless network sends the message to the BlackBerry Enterprise Server. The BlackBerry Dispatcher decrypts and decompresses the message with the master encryption key of the BlackBerry device. If the BlackBerry Dispatcher cannot decrypt the message with the master encryption key, the BlackBerry Enterprise Server ignores the message and sends an error message to the BlackBerry device. The BlackBerry Messaging Agent stores the message properties in the user's mailbox. The BlackBerry Messaging Agent sends a request through the BlackBerry Dispatcher to the BlackBerry device for the attachment content. The BlackBerry device sends the attachment content through the BlackBerry Dispatcher to the BlackBerry Messaging Agent. If the attachment content is larger than a single data packet, the BlackBerry device divides the content into multiple data packets and sends the data packets to the BlackBerry Messaging Agent. 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