Return-Path: test@test.com
From: TEST <test@test.com>
To: Me <me@me.me>
Subject: Calendar invite with HTML alternative
MIME-Version: 1.0
Date: Mon, 01 Jan 2024 00:00:00 +0000
Message-ID: <alt-calendar@test.com>
Content-Type: multipart/mixed; boundary="outer-boundary"

--outer-boundary
Content-Type: multipart/alternative; boundary="inner-boundary"

--inner-boundary
Content-Type: text/html; charset=utf-8

<html>
<body>
<p>You are invited to a meeting.</p>
<p>When: Monday, January 1, 2024</p>
<p>Where: Conference Room A</p>
</body>
</html>

--inner-boundary
Content-Type: text/calendar; charset=utf-8; method=REQUEST

BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Test//Test//EN
METHOD:REQUEST
BEGIN:VEVENT
DTSTART:20240101T100000Z
DTEND:20240101T110000Z
SUMMARY:Team Meeting
LOCATION:Conference Room A
ORGANIZER:mailto:test@test.com
ATTENDEE:mailto:me@me.me
END:VEVENT
END:VCALENDAR

--inner-boundary--

--outer-boundary
Content-Type: application/ics; name="invite.ics"
Content-Disposition: attachment; filename="invite.ics"

BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Test//Test//EN
METHOD:REQUEST
BEGIN:VEVENT
DTSTART:20240101T100000Z
DTEND:20240101T110000Z
SUMMARY:Team Meeting
LOCATION:Conference Room A
ORGANIZER:mailto:test@test.com
ATTENDEE:mailto:me@me.me
END:VEVENT
END:VCALENDAR

--outer-boundary--
