Customer is using Exchange 2007 on SBS 2008. A new mailbox has been created. Full access rights given to 3 users.
User A who runs Outlook 2007 can access the additional mailbox. Users B and C who run Outlook 2013 do get an error message "Cannot Expand Folders". This does not sound like a permission issue but rather as an Outlook 2013 issue.
Any help would be appreciated.