Symptoms
You cannot create or update an inbox rule that specifies the NoResponseNecessary value for the FlaggedForAction property, or the ExceptIfFlaggedForAction propertyby using Exchange Web Services (EWS) in a Microsoft Exchange Server 2010 environment.
Cause
This issue occurs because the NoResponseNecessary value is misspelled in Exchange Server 2010.
Resolution
To resolve this issue, install the following update rollup:
2529939 Description of Update Rollup 3 for Exchange Server 2010 Service Pack 1
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
More Information
For more information about how to create an inbox rule, visit the following Microsoft website:
How to create an inbox ruleFor more information about the FlaggedForAction property, visit the following Microsoft website:
General information about the FlaggedForAction propertyFor more information about the ExceptIfFlaggedForAction property, visit the following Microsoft website:
General information about the ExceptIfFlaggedForAction property