|Message:||%1 (%2) %3Database %6: Index %4 of table %5 is corrupted (%7).|
This Warning indicates that the index of a table in the information store is corrupted. The secondary index is corrupted. There is no single specific cause for this kind of corruption.
To resolve this warning, perform offline defragmentation of the database. An offline defragmentation of the database with eseutil /d will delete or rebuild all indexes in the database. If this problem recurs, there may be an application using the database that is causing the problem. For more information about resolving the ownership of a table to a specific mailbox, see Microsoft Knowledge Base article 262196, XADM: How to Determine Which Mailbox Owns a Particular Page in a Database.
If you are not already doing so, consider running the tools that Microsoft Exchange offers to help administrators analyze and troubleshoot their Exchange environment. These tools can help you make sure that your configuration is in line with Microsoft best practices. They can also help you identify and resolve performance issues, improve mail flow, and better manage disaster recovery scenarios. Go to the Toolbox node of the Exchange Management Console to run these tools now. For more information about these tools, see Toolbox in the Exchange Server 2007 Help.