Microsoft Dynamics CRM uses Exchange Web Services (EWS) to synchronize items between your application and the Exchange server. When the EWS Managed API tries to convert a property that is of type PT_BINARY, if the property's value is null, an exception occurs.
Microsoft has confirmed that this is a bug in the Microsoft products that are listed in the "Applies to" section.
Article ID: 2962439 - Last Review: May 27, 2014 - Revision: 1
Microsoft Exchange Server 2013 Enterprise, Microsoft Exchange Server 2013 Standard Edition