ヘッダーの出し方（ＯＥ）
メッセージ右クリ→プロパティ→詳細

で、でてくるこれ(例：これはワンクリ広告のヘッダ)
↓
Return-Path: <[email protected]>
Received: from pc02 (229.49.215.220.ap.yournet.ne.jp [220.215.49.229]) by pop.ceres.dti.ne.jp (3.10p) with SMTP id j3EDtxrt007788 for [email protected]; Thu, 14 Apr 2005 22:56:00 +0900 (JST)
Date: Thu, 14 Apr 2005 22:56:00 +0900 (JST)
Message-Id: <200504141356.j3EDtxrt007788@pop.*****.ne.jp>
To: <*****@*****.ne.jp>
From: =?ISO-2022-JP?B?YmFyaWJhcmkzMTVAczcuZGlvbi5uZS5qcA==?=<[email protected]>
Subject: =?ISO-2022-JP?B?GyRCRk8kJCQ/ISkbKEI=?=
MIME-Version: 1.0
Reply-To: <[email protected]>
Content-Type: text/plain; charset="ISO-2022-JP"
Content-Transfer-Encoding: 7bit