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ArgumentOutOfRangeException exception when an EWS application creates a new MIME email in an Exchange Server 2010 environment

Consider the following scenario:
  1. You run an Exchange Web Services (EWS) application to create a MIME email message that contains a file attachment. 
  2. In the code of the application, you specify the version of EWS for the ExchangeService object. For example:
    ExchangeService esb = new ExchangeService(ExchangeVersion.Exchange2010_SP2);
In this scenario, the application fails when the EmailMessage.Save method is called. The following exception is thrown:
System.ArgumentOutOfRangeException: index is out of range.

To resolve this issue, install the following update rollup:
2803727 Description of Update Rollup 1 for Exchange Server 2010 Service Pack 3

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 the EmailMessage.Save method, go to the Microsoft MSDN website EmailMessage.Save Method.

Article ID: 2840099 - Last Review: 05/30/2013 00:25:00 - Revision: 1.0

Microsoft Exchange Server 2010 Service Pack 3

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