Article ID: 2471964 - View products that this article applies to.
Consider the following scenario:
This issue occurs because a flag that causes the NRN is set incorrectly when you move the email message to a personal folder file.
To resolve this issue, install the following update rollup:
(https://support.microsoft.com/kb/2579150/ )Description of Update Rollup 4 for Exchange Server 2010 Service Pack 1
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Article ID: 2471964 - Last Review: July 28, 2011 - Revision: 8.0