Generally speaking this documentation is geared towards Outlook 2013/2016 and it will also assume that you have a properly functioning autodiscovery system in place.

1. Start by opening Outlook
2. If you don't already have an existing E-mail account, Outlook will take you directly into the wizard.
3. If you did not get taken directly into the wizard, click File → Info → Add Account
   
4. Fill out your name (as you wish for it to be seen by your recipients), E-mail address and password in both password fields, click Next
   
5. If you get a certificate error click Yes
   
6. Outlook should indicate successful setup of your account, click Finish
   
7. If you're adding an additional account, it should now show up in the left hand pane of Outlook as a whole separate account