How to fix “Outlook cannot connect to the server”? Having trouble sending and receiving emails using Outlook? Then it means that you are facing ox800ccc0e error which almost every user will face. There are many factors affecting this problem and you need to know about each of them because any specific reason can cause Outlook to be unable to connect to the server, which would stop your SMTP account from connecting to multiple email service providers. contact the customer support team where you can get reliable solutions to solve this problem in a very simple way.