You need to go to the mailbox setup, click on a button new and input your email address. In the pop-up window you need to add a new server. In the new window click on 'New' and choose 'Microsoft Exchange Web Services' option. Here you need to indicate the title of the server and its address. You can clarify the server address with your system administrator. Once the address is added, you may save all the changes and input the email box password.
