You can download up to five (5) copies of Microsoft Office for free from ITS's software page. Once you download and install Office/Outlook, you can follow the same steps as those for using a Dornsife-managed computer to log into your Outlook account.
Note that affiliates (iVIPs) do not have access to free copies of Microsoft Office. If you are an affiliate, you can log into your Outlook account via a web browser.