Date: Wed, 14 Jan 2004 11:28:31 +0900
Message-ID: <20040114112831@example.org>
From: Spammer <spammer@example.jp>
To: foo@example.org
Subject: =?ISO-2022-JP?B?GyRCTCQ+NUJ6OS05cCIoGyhCcHJvY21haWwbJEIkRyViGyhC?=
 =?ISO-2022-JP?B?GyRCJUYlYiVGGyhC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=ISO-2022-JP

になるわけもなく。
