“The Operation Failed” Public Folder – Outlook 2007

When attempting to view the contents of a Public Folder using Microsoft Outlook 2007, error message “The Operation Failed” is displayed.

For me, this occurred due to the “Default” user having its permissions set to “None”.  I elevated the Default user permissions to Reviewer, then users were able to view the folder contents.

Disclaimer:  Don’t set permissions to Reviewer if you don’t want people who are considered “Default” users to see the folder’s contents…