From: QA Fixture <sender@example.com>
To: test-recipient@example.com
Subject: signup-smoke-rendering
Date: Tue, 13 Oct 2026 00:00:00 +0000
Message-ID: <signup-smoke-rendering@example.com>
MIME-Version: 1.0
Content-Type: multipart/mixed; boundary="ifn-qa-mixed"

--ifn-qa-mixed
Content-Type: text/html; charset=utf-8

<style>.otp { color: red; }</style>
<p style="color:red">Verification code: <strong class="otp">418229</strong></p>
<img src="https://example.com/pixel.png" alt="Synthetic image">
<script>void 0;</script>
<form action="https://example.com/unused"><p>Synthetic form content</p></form>
<p>Read this without images.</p>
--ifn-qa-mixed
Content-Type: text/plain; charset=utf-8
Content-Disposition: attachment; filename="synthetic-note.txt"

SYNTHETIC_ATTACHMENT_ONLY
--ifn-qa-mixed--