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A meeting request cannot be opened after you disable the "Display sender's name on messages" option in the EMC on an Exchange Server 2010 server

View products that this article applies to.

Symptoms

Consider the following scenario:
  • You disable the Display sender’s name on messages option in the Exchange Management Console (EMC) on a Microsoft Exchange Server 2010 server. You do this to hide the display name of the internal sender on outgoing messages.
  • A user whose mailbox is hosted on the Exchange Server 2010 server sends a meeting request to an external attendee.
In this scenario, the external attendee cannot open the meeting request.

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Cause

This issue occurs because the syntax in iCalendar (iCal) is incorrect. An unnecessary CN parameter is added to the organizer property and the attendee property. Also, the property values of the CN parameter are set to Null when the "Display sender’s name on messages" option is disabled.

For example, the following message is found in the iCal part in the MIME message when the "Display sender’s name on messages" is disabled:
ORGANIZER;CN=:MAILTO:user@domain.com 
ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN=:MAILTO:user@domain.com
However, the expected message should be the following message:
ORGANIZER:MAILTO:user@domain.com 
ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE:MAILTO:user@domain.com

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Resolution

To resolve this issue, install the following update rollup:
2529939 Description of Update Rollup 3 for Exchange Server 2010 Service Pack 1

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Status

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

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More Information

For more information about the similar issue occurs in a Microsoft Exchange Server 2007 environment, click the following article number to view the article in the Microsoft Knowledge Base:
2497679 A meeting request cannot be opened correctly after you disable the "Display sender's name on messages" option in the EMC of Exchange Server 2007
For more information about iCalendar, visit the following Microsoft website:

General information about iCalendar

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Keywords: kbqfe, kbfix, kbexpertiseinter, kbsurveynew, kbhotfixrollup, kb

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Article Info
Article ID : 2497669
Revision : 1
Created on : 1/7/2017
Published on : 4/6/2011
Exists online : False
Views : 332