%1 (%2) %3The database engine lost one bad data record. It is highly recommended that an application-level integrity check of the database be run to ensure application-level data integrity.

This Warning event indicates that at least one data record may be corrupted. This event occurs only when problems are encountered during an offline repair.

To resolve this warning, perform an application-level integrity check of the database to ensure application-level data integrity.

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.