From: Test Sender 04 <sender04@example.com>
To: Trial Mailbox <trial.mailbox@example.com>
Subject: [SYNTHETIC TEST RECORD] Invoice copy
Date: Sun, 08 Nov 2026 09:00:00 +0000
Message-ID: <m-04@example.com>
X-Record-Marker: SYNTHETIC TEST RECORD
MIME-Version: 1.0
Content-Type: multipart/alternative; boundary="test-boundary-04"

--test-boundary-04
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: 7bit

SYNTHETIC TEST RECORD. Not a real person or business. Record M-04.

Please send a copy of the last invoice.

-- 
Test Sender 04
202-555-0133
sender04@example.com

--test-boundary-04
Content-Type: text/html; charset="utf-8"
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0

<html><body><p>SYNTHETIC TEST RECORD. Not a real person or business. Record M=
-04.</p><p>Please send a copy of the last invoice.</p><p>Test Sender 04<br>20=
2-555-0133<br>sender04@example.com</p></body></html>

--test-boundary-04--