Article ID: 2629713 - View products that this article applies to.
Consider the following scenario:
This issue occurs because the maximum size that the content indexing engine can return is 1000, and the size is smaller than the call buffer size of 4096. Therefore, when multiple calls are sent to the content indexing engine for estimating, the store stops processing the calls when the size exceeds 1000.
To resolve this issue, install the following update rollup:
(http://support.microsoft.com/kb/2645995/ )Description of Update Rollup 1 for Exchange Server 2010 Service Pack 2
For more information about multi-mailbox search, visit the following Microsoft website:
General information about the multi-mailbox search