targzの日記： 今どき From にエラーメール返すサーバーがある

とあるメーリングリストの配送を行なったところ、なんと From アドレスにエラーメールが返ってきました!! 今どきそんなサーバーがあるのかとビックリです。登録はごく最近に行なわれたらしく、正当な購読者と思われないので即時削除しました。メールアドレス収集目的に思えますね。それならば、メール配送を拒否したらあかんやん。

2通あったのですが、メールヘッダがかなり似ています。どちらも MS 製品というのは、なんともはや。

Received: from [212.159.105.209] (helo=price.co.uk)
         by pih-relay05.plus.net with esmtp (Exim) id 1KcrSm-000824-1o
        for XXXXXXXXXX; Tue, 09 Sep 2008 01:52:12 +0100
Received: from mail pickup service by price.co.uk with Microsoft SMTPSVC;
         Tue, 9 Sep 2008 01:52:11 +0100
X-FBA93D07491C64227FBEACE156DCC182: Done
thread-index: AckSFkqzv1UVO8C8TamZM+IrKa3k5w==
Thread-Topic: ***Your message was blocked***
Reply-To:
From: <postmaster>
To: "???????" <XXXXXXXXXX>
Cc:
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Date: 9 Sep 2008 01:52:11 +0100
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Received: from hidronacion.org (HELO server01.Hidronacion.org) (200.31.25.106)
  by XXXXXXXXXX with SMTP; 9 Sep 2008 00:52:46 -0000
Received: from mail pickup service by server01.Hidronacion.org with Microsoft SMTPSVC;
         Mon, 8 Sep 2008 19:56:04 -0500
X-9FF7D230494453D6DC6CBE83C56C60CF: Done
thread-index: AckSFtXNmEE3Vc1MRx2JXHXZimmj3Q==
Thread-Topic: ***Your message was blocked***
Reply-To:
From: <postmaster>
To: "???????" <XXXXXXXXXX>
Cc:
Bcc:
Subject: ***Your message was blocked***
MIME-Version: 1.0
Content-Type: text/plain
Content-Transfer-Encoding: 7bit
Content-Class: urn:content-classes:message
Importance: normal
Priority: normal
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1933
Message-ID: <[e-mail]>
X-OriginalArrivalTime: 09 Sep 2008 00:56:04.0468 (UTC) FILETIME=[D5F0D340:01C912
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Date: 8 Sep 2008 19:56:04 -0500