POST /egroupware/groupdav.php/ralf/outbox/ HTTP/1.1
Host: ralfsmac.local
Content-Type: text/calendar; charset="utf-8"
Authorization: Basic cmFsZjpzZWNyZXQ=
Content-Length: 474

BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Example Corp.//CalDAV Client//EN
METHOD:REQUEST
BEGIN:VFREEBUSY
UID:4FD3AD926350
DTSTAMP:20110922T100000Z
DTSTART:20110922T000000Z
DTEND:20110929T000000Z
ORGANIZER;CN="Ralf Becker":mailto:RalfBecker@outdoor-training.de
ATTENDEE;CN="Birgit Becker":mailto:BirgitBecker@outdoor-training.de
ATTENDEE;CN="Stefan Becker":mailto:StefanBecker@outdoor-training.de
ATTENDEE;CN="Someone Unknown":mailto:noone@other.com
END:VFREEBUSY
END:VCALENDAR
