I have attempted to put Outlook 2013 in cached mode and without and still no change.
This is only effecting 1 user out of 5 and the other 4 aren't having any issues and all 5 machines are configured the same.
The only issue is that in cached mode the secondary mailbox that it has permissions to view shows all it's folders but when clicking on the folders it shows no content.
Clicking Update Folder brings the emails down but there are too many folders to do this one by one. If not in cached mode I can see all the emails in every folder.
A topic can have its own moderator to control whether an item is posted, and to delete posts that don't meet organizational standards or violate policy.
Attach calendars, contacts, and tasks or task lists to posts to share information with people who have access to the folder.
When you post a message to a public folder, you're not emailing it to anyone, so no one's Inbox gets cluttered.
When the top level folder is available, simply press Ctrl 6 to view it and its content in the Outlook Folder pane.But if they uncheck the box beneath the shared calendar name, and don’t access it for a while, and then after 1 month they check the box beneath this shared calendar because they need to access it, Outlook will update the data with the data from the last month since last time they accessed it.Updates download of calendars is on access only when “Download Shared folders” is checked on Outlook (2010, 2013) As a summary, if the user has cached mode enabled, calendars will be updated when they will access the calendar, if users doesn’t have cached mode enabled, calendar connection will be on access only as well.By default, Outlook grants permissions only to you, as the creator of the public folder, so you then need to specifically grant permissions to people so they can read and post content in the folder.Learn how to Change permissions for a public folder. As needed, set permissions for each subfolder (you may want to restrict access to folders that contain confidential or sensitive information).