The Outlook desktop app will give the best experience when using email from a desktop or laptop computer. This program is installed on all district computers. Once logged in, just open the program and click through the screens until your inbox appears. There will be a delay the first time it opens as it sets up your inbox. Here's a quick video on accessing Outlook.
You can download the Outlook app in the Google and IOS app stores. You can download the full version of Office 365, which includes Outlook, for free at office.com.
The web version of Outlook is useful if you are on a non-district computer, or at home.