From: albert@einstein.com
To: marie@curie.com
Subject: Test Subject
Date: Mon, 01 Jan 2024 14:00:00 +0000
MIME-Version: 1.0
Content-Type: multipart/mixed;
 boundary="OTi56O3hPypBNfzLsCk053S1timfKY03AexmLpxU"

--OTi56O3hPypBNfzLsCk053S1timfKY03AexmLpxU
Content-Type: multipart/alternative;
 boundary="HDKQ1fKhhPf7wLdMpdLSlteF05Rxv6VCIqIQf82I"

--HDKQ1fKhhPf7wLdMpdLSlteF05Rxv6VCIqIQf82I
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit

This is a test message (plaintext).
--HDKQ1fKhhPf7wLdMpdLSlteF05Rxv6VCIqIQf82I
Content-Type: text/html; charset=utf-8
Content-Transfer-Encoding: 7bit

<p>This is a test message (html).</p>
--HDKQ1fKhhPf7wLdMpdLSlteF05Rxv6VCIqIQf82I--
--OTi56O3hPypBNfzLsCk053S1timfKY03AexmLpxU
Content-Type: application/octet-stream
Content-Disposition: attachment; filename="test.txt"
Content-Transfer-Encoding: 7bit

This is a test attachment.
--OTi56O3hPypBNfzLsCk053S1timfKY03AexmLpxU--
