Article ID: 2463798 - View products that this article applies to.
Consider the following scenario:
This issue occurs because the IMAP4 service triggers an unnecessary copy on write (COW) action when a calendar cannot be converted to a MIME type. Then, a recoverable item is created in the dumpster root folder. Performance decreases when many unnecessary recoverable items are in the folder.
To resolve this issue, install the following update rollup:
(http://support.microsoft.com/kb/2529939/ )Description of Update Rollup 3 for Exchange Server 2010 Service Pack 1
To work around this issue, use one or more of the following methods:
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Article ID: 2463798 - Last Review: April 6, 2011 - Revision: 3.0
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