In Office Communicator 2007 R2, User A gets a failure-to-deliver message after sending an IM to User B even though User B receives the message

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SYMPTOMS
In a group IM session in Office Communicator 2007 R2, User A sends User B an instant message (IM). User B receives the IM successufly. However, User A still gets a failure-to-deliver message that states that his IM has not been received by User B.
CAUSE
This issue occurs because the 202 Accept message and the Notify message that are sent for the IM are received in reverse order.
RESOLUTION
To resolve this issue, apply the following update:
  • 967673 Description of the Communicator 2007 R2 hotfix rollup package: April 2009
After you apply this update, an Accept message that has been received for the message above is placed in the queue and a check is made for the matching Notify message. When this message is found, the Accept message is taken out of the queue, and the process proceeds as if the message has just been received.
STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Properties

Article ID: 968690 - Last Review: 01/15/2015 19:47:02 - Revision: 1.0

  • Microsoft Office Communicator 2007 R2
  • kbnosurvey kbarchive kbfix kbqfe kbexpertiseinter kbsurveynew kbprb KB968690
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