Posted by: kurtsh | September 21, 2020

INFO: Publishing your Exchange Online calendar externally for others to view

Would you like to publish your free/busy information from your calendar so other people outside of your organization can see it from Office 365?  You still can – but you’ll need to do it from the Outlook Web experience.

If you have Microsoft 365 or another email service based on Microsoft Exchange Online, use Outlook on the web to share your calendar with people inside or outside your organization. Depending on the permission you give them, they can view your calendar, edit it, or act as your delegate for meeting requests.

In Calendar settings, you can publish your calendar so anyone can view your calendar or subscribe to it.

  1. In Calendar view, select Settings Settings > View all Outlook settings.

  2. Select Shared calendars.

  3. Under Publish a calendar, choose which calendar you want to publish and how much detail people can see.

  4. Select Publish.

  5. If you choose an HTML link, recipients can copy and paste the URL in a browser to view your calendar in a new browser window.

    If you choose an ICS link, recipients can download the ICS file and import it into Outlook. This will add your events into their calendar, but recipients won’t automatically receive any updates to your calendar. Alternatively, recipients can use the ICS link to subscribe to your calendar through Outlook. They’ll see your calendar alongside their own and will automatically receive any updates to your calendar.


  • HTML and ICS calendars are read-only, so recipients won’t be able to edit your calendar.
  • How often your ICS calendar syncs depends on the recipient’s email provider.

Taken from:


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