|Message:||There is an error in your Outlook Web Access configuration.The authentication type specified on the OWA virtual directory is set to Anonymous. This check box must be cleared for Outlook Web Access to function properly.|
This Error event can occur if Internet Information Server (IIS) has been used to configure the authentication settings for the Outlook Web Access virtual directory. Outlook Web Access authentication settings should be configured only by using the Exchange Management Console or the Exchange Management Shell.
To resolve this error, do one or more of the following:
For more information about how to configure Outlook Web Access Authentication see Managing Outlook Web Access Security.
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.