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Choose Which Email/Calendar App to Use (with Office 365)

This page explains the university-supported ways faculty and staff can connect to their email accounts, along with common alternatives if none of those meets your needs.

This article applies to: Microsoft Outlook

On This Page

Please note that your college, unit, or department may require that you use a particular method to access your Cornell email and calendar. Your IT or computer support staff can advise you about any requirements or recommendations.

Manage Your Email and Calendar on the Web

Outlook on the web (formerly called OWA) is a service for managing your email and calendar on the web. It can be used with most current web browsers, including Chrome, Firefox, Safari, and Internet Explorer.

You can choose to use Outlook on the web exclusively. Or you can use it when you're away from your own computer, and use another email and calendar application, such as Outlook, the rest of the time.

Manage Your Email and Calendar with Outlook for Windows or Mac

Outlook is an email/calendar app that is installed on your computer. It is designed specifically for Cornell's Office 365 email and calendar system. 

Microsoft has introduced a preview of the New Outlook for users of Windows and Mac desktop applications. Some users find that after software updates, their Outlook is opening in the “New” view and missing functionality. Please contact the IT Service Desk if you need assistance switching back to the Old Outlook.

Outlook offers powerful ways to integrate your email, calendar, task lists, and address book, and many options for organizing your email. It also provides flexible, secure ways to enable other people to manage your email and calendar.

Outlook looks very much like Outlook on the web, a service for viewing your email on the web. That's beneficial because, for the most part, you only need to learn one of these applications to efficiently use any of them.

Install Outlook for Windows or Mac: Under the Microsoft Campus Agreement, Cornell University staff, faculty, and affiliates can download Microsoft Office to install onto their institution-owned computers at no charge.

Weill Cornell Medicine has its own independent arrangement with Microsoft, and is not covered under the Microsoft Campus Agreement. Weill Cornell staff should check with their local IT providers for more information.

Manage Your Email and Calendar with Apple's Mail and Calendar Apps

Apple macOS comes with Mail and Calendar apps. While not as fully integrated as Outlook, these apps provide comparable features.

Manage Your Email and Calendar on Your Mobile Phone

You can use your Android, iOS, or other smartphone to manage your Cornell email and calendar.

Other Ways to Manage Your Cornell Email

If none of the university-supported ways to read your Cornell email meets your needs, you can choose one of the two options below.

These methods will not work with Two-Step Login and cannot be supported by the IT Service Desk.
  • Use any email application that supports the IMAP email protocol. Please understand that you're responsible for installing and configuring the email application on your own, and doing your own troubleshooting if problems arise. Here are the settings you'll need to find in your client's configuration. (Microsoft's E-mail Setup Wizard for Office 365 may be helpful.)
  • Your username is typically your netid or (for example, pqs665 or
  • Set the IMAP server to use port 993 and set the encryption to SSL/TLS.
  • Set the SMTP server to use port 587 and set the encryption to STARTTLS.
  • To connect to Cornell's Electronic Directory, locate the Directory Server area of your client's configuration options.
    • Set hostname to
    • Set base DN to o=Cornell University,c=US Please note: The Base DN entry begins with a lowercase letter "o" not a zero. There is no space before or after the comma.
    • Set port to 389.


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