Article ID: 2689810 - View products that this article applies to.
Consider the following scenario:
This issue occurs because the Exchange server does not convert the body of the calendar item that is created by an EWS application to the correct format.
To resolve this issue, install the update rollup that is described in the following article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/2685289/ )Description of Update Rollup 3 for Exchange Server 2010 Service Pack 2
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For more information about message formats in Outlook and content conversion, go to the following Microsoft website:
Understanding Content Conversion
Article ID: 2689810 - Last Review: May 29, 2012 - Revision: 1.0