About the IU Microsoft Exchange environment and Exchange Online

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UITS Exchange administrators are moving the IU community from the Intel-based on-premises server running Microsoft Exchange Server 2013 Enterprise to Exchange Online.

Microsoft Exchange Online is a hosted messaging solution that delivers the capabilities of Microsoft Exchange Server as a cloud-based service, allowing you to access email, calendar, contacts, and tasks from your personal computer, the web, and mobile devices. Exchange Online integrates fully with Active Directory, enabling administrators to use group policies and other administration tools to manage its features across their environment. Though hosted by Microsoft, Exchange Online is still managed by the IU Exchange administrators and meets the same security and privacy guidelines as traditional, on-premises Exchange.

The move to Exchange Online will improve IU’s mail security by requiring all connections to mail to use two-factor authentication. The Microsoft 365 (formerly Office 365) platform also provides many advanced Threat Protection settings and other enhanced controls.

Exchange Online also integrates directly into Microsoft Teams at IU, allowing you to schedule meetings and see your Exchange calendar and free/busy information, all within the Microsoft Teams application. Other Microsoft 365 applications such as Power Automate can also take advantage of the account, storing attachments in Microsoft OneDrive at IU, or setting email triggers on activity.

Feature updates

Exchange Online includes the following feature updates:

  • Improved security, including 2FA
  • Compatibility with Microsoft Teams at IU, Microsoft OneDrive at IU, Canvas, third-party tools, and other organizations
  • Likes and @ mentions
  • Microsoft MyAnalytics
  • Skype for Business to Teams Telephony
  • Cortana Daily Briefings
  • Power Automate
  • Larger quotas (100 GB for most users)
  • Better spam controls
  • Junk mail retention increased to 30 days
  • Long-term platform stability

About the migration

Departments will be migrated to Exchange Online as a group. Individual migrations are not allowed.

There is no specific department timeline, but before your account is migrated, you will receive notifications with instructions, similar to those shown below, via email and IU Verify. (To view all the content available to you here, be sure you are logged into the Knowledge Base; use the green Log in button at the top of this page.)

UITS recommends enabling Cached Exchange Mode on clients that support it. For more, see About Outlook's Cached Exchange Mode and Online Mode.

Add-ins for Exchange Online

Add-ins for the Exchange Online environment are not being considered. For more, see About Microsoft 365 add-ins at IU.

Configure your mail client for Exchange Online

IU's Exchange Online environment does not support IMAP. If you use Thunderbird or Linux, check the "Owl for Exchange add-on" or "Evolution email client" instructions noted below.

Follow the appropriate instructions below to configure your mail client for Exchange Online.

You may also wish to view some short how-to videos.


For a list of known issues and workarounds for Exchange Online, see Known issues with Exchange Online.

For help troubleshooting Outlook, see How to troubleshoot performance issues in Outlook.

This is document ahza in the Knowledge Base.
Last modified on 2021-02-25 15:07:41.

Contact us

For help or to comment, email the UITS Support Center.