I sent this .ics event with an email:
BEGIN:VCALENDAR
VERSION:2.0
CALSCALE:GREGORIAN
PRODID:adamgibbons/ics
METHOD:REQUEST
X-PUBLISHED-TTL:PT1H
BEGIN:VEVENT
UID:RUo-Akvn-dNj7pve87fNv
SUMMARY:Appointment with your Nurse at mywebapp.com
DTSTAMP:20221211T001700Z
DTSTART:20221208T170400Z
SEQUENCE:2
DESCRIPTION:12/8 12:04pm
URL:https://www.mywebapp.com/
STATUS:CANCELLED
ORGANIZER;CN=John Smith
CLASS:PRIVATE
ATTENDEE;RSVP=FALSE;CN=John Smith
ATTENDEE;RSVP=FALSE;CN=Jane Smith
DURATION:PT15M
END:VEVENT
END:VCALENDAR
I have sent it via NodeMailer with a MailComposer object that looks like this:
Notice that the method is set in the icalEvent, to CANCEL. NodeMailer says that this is the way to set the method here.
According to this SO post, the event should be marked in Outlook as cancelled.
The .ics file I send is being received, but instead of cancelling the event, the event is re-added to the Outlook Calendar.
How can I correct this?
