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Illinois State University

Checking Office 365 Email Online

This article describes how to check your email messages in your Illinois State University’s Office 365 Mail inbox through the Office 365 Outlook Web App.

Office 365 Email

Illinois State University’s Office 365 Email can be accessed through the web, via an email client (such as Microsoft Outlook or Mozilla Thunderbird), as well on mobile devices. Office 365 email is the primary campus email and calendaring service for campus.

Outlook Web App in Office 365

Accessing your inbox and checking email online:

  1. Navigate to, log in, and click the Outlook tile to launch the email application.

  2. Your Office 365 email will open and display your Inbox.

  3. Click a message in your Inbox to view its contents. Double click the message for a pop out of the message.

  4. Click the Reply All button to respond, or click the drop down arrow next to Reply All for other reply options.

What You Will See in Your Office 365 Inbox

Use the New Message button to compose a new message.

Use the Folders listed on the left to help organize and group together emails.

Click here to open your inbox.

Use the Search Mail and People field to search for specific emails using key words, or people’s names.

This is where you will search for emails, contacts, and more.

How to Get Help

For technical assistance, please contact the Technology Support Center by phone (309) 438-4357, or by email at

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