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Process flow: Sending an email message from a BlackBerry device using BlackBerry transport layer encryption

This diagram shows the elements that are described in the following process flow.
  1. A sender sends an email message from a BlackBerry® device to a recipient.
  2. The BlackBerry device performs the following actions:
    1. compresses the email message
    2. encrypts the compressed email message using the message key
    3. encrypts the message key using the device transport key of the BlackBerry device
    4. sends the encrypted message key and encrypted email message to the BlackBerry® Enterprise Server
  3. The BlackBerry Enterprise Server performs the following actions:
    1. decrypts the message key using the device transport key
    2. decrypts the email message using the message key
    3. decompresses the email message
    4. forwards the email message to the recipient
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