From: sender@example.invalid
To: recipient@example.invalid
Date: Thu, 04 Oct 2006 08:00:00 +0000
Message-ID: <attachment-in-multipart-alternative@example.invalid>
MIME-Version: 1.0
Subject: Misplaced attachment in multipart/alternative
Content-Type: multipart/alternative; boundary="------------alternative"

--------------alternative
Content-Type: text/plain; charset=UTF-8

We open attachments.
--------------alternative
Content-Type: application/pdf; name="report.pdf"
Content-Disposition: inline; filename="report.pdf"
Content-Transfer-Encoding: base64

JVBERI0xLjQgZmFrZQ==
--------------alternative--