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See: Uninstalling Outlook or Office updatesand: Uninstall Office 365 Click-To-Run Updates Important!
Select the Folder tab in Outlook, click on the button IMAP Folders and then click the Query button.If all folders start with a common name followed by a dot, then that first part is your root name.If you do not do this, your Inbox could remain empty and other folders might not sync or show up at all and move, copy and delete actions could result in permission errors.Some IMAP servers branch of all your folders from the Inbox folder.When it comes to support with security updates and confirmed software bugs, no support charges will apply but you might need to supply credit card information to open the support case. Language issues If you are working with an IMAP server which is using names for special folders in a language other than your language of Outlook, these special folder might not be recognized in Outlook and local “This computer only” folders might be created.
For instance, an English version of Outlook might not correctly map the Sent Items folder to the “Verzonden items” folder located on a Dutch IMAP. t=12890 Read this answer in context I also have this problem.If it works for somebody, please could you post a firebug net window, to see the difference, and maybe localize the source of the problem? (I mean if it is mozilla related, or ms related)Create a new profile as a test to check if your current profile is causing the problems. t=12890 cor-el - Your suggestion led me to the problem and fix. Once I discovered this, I found this at their website and now all is well. See "Creating a profile": *https://support.mozilla.org/kb/profile-manager-create-and-remove-firefox-profiles * If the new profile works then you can transfer some files from an existing profile to the new profile, but be careful not to copy corrupted files. “ Actually, the November update for Outlook 2013 (KB2837618) fixes a whole lot of IMAP issues and is highly recommended.