"A folder with same name already exists" error when you rename an Outlook folder in an Exchange Server 2010 environment

Assume that you try to rename a folder whose name contains non-English characters in Microsoft Outlook online mode or Outlook Web App. Then, you change a character or the full folder name from lowercase to uppercase characters (or vice versa). In this situation, the renaming fails.
To resolve this issue, install the following update rollup:
2936871 Update Rollup 6 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 character sets, go to the following Microsoft website:

מזהה פריט: 2957762 - סקירה אחרונה: 05/27/2014 19:53:00 - תיקון: 1.0

Microsoft Exchange Server 2010 Service Pack 3

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