Exchange Online

Exchange Online is part of the Microsoft 365 and Office 365 suite of products.

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Microsoft Exchange Online is a cloud based messaging platform that delivers email, calendar, contacts, and tasks. Users with an Exchange Online license connect to Exchange Online through email and calendar clients like, Outlook desktop, Outlook on the web and Outlook mobile app to access email and collaboration functionality, including shared mailboxes, shared calendars and global address lists.

You get Exchange Online when you sign up for Microsoft 365 for business and Microsoft 365 for enterprise subscriptions.

You can also buy standalone Exchange Online plans ( for your organization.

Manage Exchange Online

As an administrator for your organization, you manage your organization's Exchange Online service in the Exchange admin center (EAC). Use the Microsoft 365 admin center for simple email and user management tasks. Use the EAC in Exchange Online for more complex tasks. Learn more at Exchange admin center in Exchange Online.

Here's how you get there:

  1. Sign in to Microsoft 365 or Office 365 using your work or school account, and then choose the Admin tile.
  2. In the Microsoft 365 admin center, choose Admin centers > Exchange.

Exchange admin center is also available at this URL address

Not all settings will be available if you are using Microsoft Entra groups to manage role assignments.

To help you administer Exchange Online, assign users to the Exchange administrator role.


When you assign someone to the Exchange administrator role, we recommend assigning them to the Service Support administrator role. This way they can see important information in the Microsoft 365 admin center, such as the health of the Exchange Online service, and change and release notifications.

Help for Microsoft 365 admins

We're consolidating our content on the Office help and training site. See the following: