Exchange Search Indexer failed to enable the Mailbox Database %1 (GUID = %2) after %3 tries. The last failure was: %4. It will retry after %5 minutes.

This Error event indicates that the Microsoft Exchange Search service did not enable indexing for the specified mailbox database after a specified number of tries. To enable indexing means to create and mount the search catalog for the mailbox database. This error can occur because the disk is full.

To resolve this error, do one or more of the following:

• View the Application event log for a detailed event description.

• Do nothing. The Exchange Search service will try again to enable indexing for the mailbox database.

• Restart the Microsoft Exchange Search service from the Services snap-in.

• Get additional help by posting the issue at Newsgroups: Exchange Server and Outlook.

• If the options here do not help in resolving the issue, contact Microsoft Product Support Services. For more information, visit the Contact Us page of the Microsoft Help and Support Web site.

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.