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

Faculty, staff, and professional and graduate students can access their Cornell email and calendar in a number of ways. This page explains the university-supported ways, and common alternatives if none of those ways meets your needs.

This article applies to: Email for Faculty and Staff

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 Internet Explorer, Firefox, Safari, and Chrome.

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.

Get Started with Outlook on the Web

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. 

  • Outlook 2016 for Windows  comes with Microsoft Office 2016.
  • Outlook 2016 for Mac comes with Microsoft Office 2016 for Mac.

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 Medical College 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 OS X comes with Mail and Calendar apps. While not as fully integrated as Outlook, these apps provide comparable features.

Get Started with Apple’s Mail App

Get Started with Apple’s Calendar App

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.

  • iPhone/iPad
  • Android, Windows Mobile, and others

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:

  1. Use any email application that supports the IMAP or POP email protocols. 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
  • For IMAP, set the IMAP server to
    use port 993
    and set the encryption to SSL/TLS.
  • For POP, set the POP server to
    use port 995
    and set the encryption to SSL/TLS.
  • For both IMAP and POP, set the SMTP server to
    and 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 Number to 389.
  1. Forward your Cornell email to a non-Cornell email account . Be sure to note the university’s guidelines about situations in which you should not forward your Cornell email.

Email for Faculty and Staff Articles

see all

  • Clients (Apps)

    • Choose Which Email/Calendar App to Use (with Office 365)
      Faculty, staff, and professional and graduate students can access their Cornell email and calendar in a number of ways. This page explains the university-supported ways, and common alternatives if none of those ways meets your needs.

    • Email Delivery Options (Faculty/Staff/Retirees)
      This page describes how faculty, staff, and retirees set their email delivery options. General information on email delivery can be found in our Delivery Options article. We recommend you read it. Thanks. 

    • Email Delivery Options (Graduate/Professional Students)
      This page describes how graduate and professional students set their email delivery options. General information on email delivery can be found in our Delivery Options article. We recommend you read it. Thanks. 

    • Set Your Email Delivery Options
      Faculty, staff, students, alumni, and retirees can have email addressed to their Cornell address delivered or forwarded in a number of ways.

    • View Full Headers
      If you are having problems with your email, one common diagnostic aid is a complete list of the message’s headers. Headers show the path a message took to get from the sender to the recipient.

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Home > Services > Email & Calendar > Office 365 Email/Calendar

Office 365 Email/Calendar

Also known as

Also known as: 

  • Webmail
  • OWA
  • Outlook
  • O365
  • Office365
  • Exchange

Office 365 is Microsoft’s cloud-based email and desktop application service. It combines the functions of Outlook, Word, Excel, and other Office products into a web-based, cross-platform system. WCM is currently using Office 365 for email, with other services to be launched in the near future.

All faculty, staff, and students are given a WCM email account that can be accessed in three ways: from the Microsoft Outlook application, a web browser with Webmail , and/or mobile device. Your email account is your CWID , followed by

What’s Included

  • Integrated email, calendar, tasks and contacts.
  • 100GB of space, with unlimited archive to be released in the near future.
  • Drag and drop integration of Outlook and other Microsoft Office productivity applications.
  • Full-featured web interface allowing you to access your email and calendar from anywhere.
  • Ability to set scheduled delivery of messages to individuals or lists.
  • Ability to recall or expire messages you send if they are unread by the recipient.
  • Real-time updates for most mobile devices via Mobile Access and ActiveSync.
  • OneLook Service: GE CB patient schedules viewable in your personal calendar.

Cost and Fees

All WCM faculty (including voluntary faculty), staff, and students receive a WCM email and calendar account at no additional cost. This also includes mobile access.

Service Requirements

For best results, we recommend accessing your email account via Outlook with either Outlook 2016 or 2013 for Windows or Outlook 2016 or 2011 for Mac. You can also use Apple Mail.

If you do not have any of the aforementioned clients, you can access your account with Webmail anywhere you have an Internet connection.

Frequently Asked Questions

Q: What is the maximum file size I can email as an attachment?

A: The maximum file size is 25 MB if you are sending the attachment via Outlook or Webmail. To send larger attachments up to 35GB, use the File Transfer Service .

Q: What is the "Clutter" folder in my email account?

A: Clutter is a feature designed to move low priority messages out of your inbox and into their own folder, saving you time when you scan for important messages. Once you activate it, Clutter looks at what you’ve done in the past to determine the messages you’re most likely to ignore. It then moves those messages to a folder in your inbox called Clutter items.

The Clutter items folder will be available regardless of how you access your account. Clutter and junk email are both filtered out before they reach your inbox. Junk email is evaluated first, and filtered based on the characteristics of the messages themselves, for example the subject or the server it was sent from. Next, Clutter analyzes the remaining messages destined for your inbox, and filters out the types of messages that you usually ignore or don’t respond to, based on your past behavior.

Visit the Microsoft website for more information about using Clutter, including how to turn it on and off.

Q: How do I search for NYP contacts in Outlook/Webmail?

A: NYP did not migrate to Office 365 for its email system, so it is no longer possible to search for NYP contacts using the Global Address Book in Outlook or Webmail.

If you are a WCMC employee and you need to search for an NYP contact, you have two options:

  1. Search for the NYP contact with the WCMC Directory .
  2. Connect to the LDAP Directory. LDAP is an additional directory that will allow your mail client (Outlook for Mac, Outlook for Windows, Apple Mail) to search for NYP contacts. View the “Guide” section of the O365 Email & Calendar page for more information on how to connect to LDAP.

All FAQs for this service


Best Practices for Calendar

Best Practices for Email

How to download Office 2016 on a home computer, personal computer, or a computer that is not ITS-tagged

How to download Office 2016 on a Tagged Computer

How to encrypt your email

How to forward spam emails to ITS

How to recover deleted items in Outlook

How to Set Up LDAP in Apple Mail

How to Set Up LDAP in Outlook (Mac)

How to Set Up LDAP in Outlook (Windows)

How to Use Apple Mail

How to Use Outlook 2010/2013 for Windows

How to Use Outlook 2011 for Mac

How to Use Webmail

Proofpoint Spam Management Guide

Security During International Travel

Security for Personal Devices

Using Duo to Access Your WCM Email


  • 11.14 – Email Security
  • 11.08 – Use of Email



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