I'm trying to create a GPO to turn off caching of shared mailboxes which by default is enabled. I followed the following article http://support.microsoft.com/kb/982697
to use the GPO for Outlook 2013. The policy is being applied based on the results of gpresult. The problem is this setting is not taking. I looked for the registry key that the article refers to and I do not see it. The setting can be tweaked manually just not through the GPO.