There is an error in your Outlook Web Access configuration.The character “%5” is not valid for file extensions. It was found in character “%4” of “%3” in element “%2” of the “%1” array in the Outlook Web Access attachment policy for the “%6” virtual directory. This can be corrected by using the Exchange Management Console.

Details
Product: Exchange
Event ID: 15
Source: MSExchange OWA
Version: 8.0
Symbolic Name: OwaAttachmentFileTypeInvalidCharacter
Message: There is an error in your Outlook Web Access configuration.The character “%5” is not valid for file extensions. It was found in character “%4” of “%3” in element “%2” of the “%1” array in the Outlook Web Access attachment policy for the “%6” virtual directory. This can be corrected by using the Exchange Management Console.
   
Explanation

Outlook Web Access lets you control access to attached documents through the Allow, Block, and Force Save lists. This Error event will occur if a character in a file name extension in one of the attachment policy file name extension arrays is not valid.

   
User Action

Remove the character that is not valid from the file name extension in the affected policy file name extension array.

For information about how to edit the file access policy file name extensions, see How to Manage Public and Private Computer File Access.

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.

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