Yahoo Mail is counted as one among the eminent email services, which are used for sending or receiving the messages. It has vast inbox memory storage space, robust security, spam filtering, remote accessing, supervising the large attachment files, and much more. It is preferred for professional purposes. Yahoo Mail error 800C0000 is a familiar issue which the user gets while synchronizing the emails. The problem arises due to the outdated Yahoo Mail application version or maybe the synchronization issue between account and the application. To get rid of the problem wholly, you need to look online for the available blogs and articles or contact the Yahoo Customer Service number to share your concerns with the experts. The technicians are available round the clock at your services.