It is very true that Outlook email application is the best email client which is used by millions of user across the world. However, it comes with several useful features but we also can’t ignore the issues which we get while using Outlook. If you are an Outlook user then it is possible that you come across through several error message and Error 0x8004060C is one of them. Usually this error occur when the PST file exceed its limit. User can encounter this error while sending or receiving emails because there is not enough space remain to store more data.