RSVP event not working for outlook

[vinodjoshi]

Hi I have Generated .ics file from icalendar-generator and attaching it to the mail. Its working fine for Google and Yahoo but its not working for outlook.

I am not sure if this is regarding Icalendar or not. Let me know if i miss anything here.

   `$startDate = Carbon::now()->addDays(10);
    $endDate = Carbon::now()->addDays(11);
    
    $calendar = Calendar::create('Laracon online')
    ->appendProperty(
        TextProperty::create('METHOD', 'REQUEST')
    )
    ->event(Event::create('Creating calender feeds')
        ->startsAt(Carbon::parse($startDate))
        ->endsAt(Carbon::parse($endDate))
        ->description('This is the description of the event.')
        ->organizer('[email protected]','Organizer')
        ->attendee('[email protected]', 'John', requiresResponse: true)
    );
    
    return [
        Attachment::fromData(fn () => $calendar->get(), 'event.ics')
            ->withMime('text/calendar'),
    ];`

.ics File string

`BEGIN:VCALENDAR
VERSION:2.0
PRODID:spatie/icalendar-generator
NAME:Laracon online
X-WR-CALNAME:Laracon online
METHOD:REQUEST
BEGIN:VTIMEZONE
TZID:UTC
BEGIN:STANDARD
DTSTART:20230701T105717Z
TZOFFSETFROM:+0000
TZOFFSETTO:+0000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
UID:6603fb8dd068c
DTSTAMP:20240327T105717Z
SUMMARY:Creating calender feeds
DESCRIPTION:This is the description of the event.
ORGANIZER;CN=Organizer:MAILTO:[email protected]
ATTENDEE;CN=John;RSVP=TRUE:MAILTO:[email protected]
DTSTART:20240406T105717Z
DTEND:20240407T105717Z
END:VEVENT
END:VCALENDAR`