Microsoft KB Archive/931767

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A response from a meeting request recipient is processed as a new attendee when the meeting request recipient cannot be resolved to an Active Directory contact

Article ID: 931767

Article Last Modified on 10/25/2007


  • Microsoft Exchange Server 2003 Enterprise Edition
  • Microsoft Exchange Server 2003 Standard Edition


Consider the following scenario:

  • The organizer of a meeting request is in a different domain than a recipient of the meeting request.
  • The recipient is an Active Directory contact in the domain of the organizer.

In this scenario, the recipient is resolved as an Active Directory contact when the meeting request is sent. However, a response from the recipient is processed as a new attendee.


This problem occurs because the response from the recipient uses an unauthorized SMTP address that does not resolve to the Active Directory contact in the organizer's domain. Therefore, the response is processed as a new attendee in the meeting request.


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

Additional query words: CM 70351, cdo 1.21, duplicate attendee

Keywords: kbtshoot kbexchdev kbexpertiseinter KB931767