Microsoft 365 is a complete, intelligent solution, including office 365, Windows 10, and Enterprise Mobility + Security that empowers everyone to be creative and work together, securely. But as of all these features, Microsoft 365 also has some issues with connecting in outlook services and login error. You can also solve this error by using the support and recovery app. And if you are not able to solve all these errors contact customer support on Microsoft Office Support Phone Number +1-844-947-4746.
http://microcustomercare.com/ms-office-365/