As stated, somehow the "anonymous" user has been removed from a user's Outlook mailbox. I installed PFDAVAdmin and checked the permissions. In PFDAVasmin the "anonymous" user appears with the "NT Authority\Anonymous Logon = none", but from within Outlook (using right click/properties/permissions) the anonymous user is not present. Any other user in the organization can connect to any folder that exists on the mailbox that is missing the "anonymous" user. Any recommendations? Thanks for your help.

Hi, I think it is perfectly fine. Anonymous is for non-authenticated users and if logon is none, than anonymous have no permission to the folders. For users within organization there is "Default" and it depends on how default permission is set. Default values are: Anonymous: none Default: none owner(s) of the mailbox: owner You can change permissions to default if you dont want everybody to see / edit contents. (http://www.howto-outlook.com/howto/permissions.htm) Regards Zbynk

Agree with Zbynek. He gave a good explanation and article. Gulab | MCITP: Exchange 2010-2007 | Skype: Gulab.Mallah | Blog: www.ExchangeRanger.Blogspot.com

Thank you for the response. That cleared up my questions and everything is working properly now.