Turn "request responses" on or off for meetings in Outlook

In classic Outlook by default, a response is required when you send a meeting invitation to others. However, you can turn this option off:

1. On the Meeting tab, in the Attendees group, select Response Options.

2. Remove the selection from Request Responses to turn off this option.

For Outlook for Mac by default, a response is required when you send a meeting invitation to others. However, you can turn this option off:

• In meeting invitation, on the toolbar, select Attendee Options, then remove the selection from Request Responses.

For new Outlook​​​​​​​ by default, a response is required when you send a meeting invitation to others. However, you can turn this option off:

• On the Event tab, select Response Options, then remove the selection from Request responses.