If you are not able to configure Outlook using the Microsoft Online Sign-in Tool for some reason, there's a way to do it manually.
For this to work, you need the following:
First off, we need the mailbox store server. To find this, you have to log in to Outlook Web Access. Your ICT department should already have given you information on how to do this. If not, use one of the following urls, depending on your location:
Use your e-mail address and password to log on.
Once you're in, click Options in the top-right corner of the page, then from the list on the left, select About. You'll then get all sorts of information.
The field we need is Mailbox Server Name: note it down somewhere or copy/paste it to a notepad.
Next, open up Outlook and add a new Exchange e-mail account. Fill in the two fields you see:
Before clicking on Check Name, click on More Settings first. Navigate to the Connection tab. Enable the checkbox saying Connect to Microsoft Exchange using HTTP, then click on Exchange Proxy Settings.
Fill in the connection settings:
Press OK twice until you are in the first window and click on Check Name. The server and user name should become underlined.
And that's it. (Re)Start Outlook and wait for the initial sync.