How to use Hide Attendee List in Outlook Calendar Invites

Outlook for the Web offers a way to mask the attendee list in a calendar invite.  This will prevent someone from seeing who is invited, or if they "Reply All" to a calendar invite, all invitees will not be emailed.  It is like BCC but for calendar invites.

Here is how to do it:

1. Navigate to Outlook Web Calendar on your browser using https://outlook.office.com/calendar
2. Click on New Event  
3. Click on Response Options, which is the icon to the right of your attendee list.  
4. Make sure the Hide Attendee List option is enabled as illustrated in this picture:

When you have completed setting up your meeting invite, click Send.