From: foo1@example.com
MIME-Version: 1.0
To: foo2@example.com,foo3@example.com
Subject: REQUEST - Phone Conference
Content-Type:text/calendar; method=REQUEST; charset=US-ASCII;
  Component=vevent
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment; filename="event.vcs"

BEGIN:VCALENDAR
PRODID:-//ACME/DesktopCalendar//EN
VERSION:2.0
METHOD:REQUEST
BEGIN:VEVENT
ORGANIZER:foo1@example.com
ATTENDEE;RSVP=TRUE;ROLE=REQ-PARTICIPANT;CUTYPE=GROUP:MAILTO:employee-A@host.com
ATTENDEE;RSVP=TRUE;ROLE=REQ-PARTICIPANT;CUTYPE=GROUP:mailto:Employee-B@HOST.com
ATTENDEE;RSVP=TRUE;ROLE=REQ-PARTICIPANT;CUTYPE=GROUP:MailTo:Eric@agony.busboom.org
DTSTAMP:19970611T190000Z
DTSTART:19970621T170000Z
DTEND:19970621T173000Z
SUMMARY:Let's discuss the attached document
UID:calsvr.example.com-873970198738777-8aa
SEQUENCE:0
STATUS:CONFIRMED
END:VEVENT
END:VCALENDAR