Unusual spam recently

[David Stanaway <david@stanaway.net>]

Hi,

Has anyone else been receiving unusual spam recently which contains no
content?

Is this some spam engine checking MTAs to see if the addresses are
accepted?

Here is an example:

Return-Path: <easqtl@qwest.net>
X-Original-To: david@stanaway.net
Delivered-To: david@stanaway.net
Received: from host-69-145-228-124.client.bresnan.net (unknown
        [69.145.228.124]) by david.dialmex.net (Postfix) with SMTP id
CF733146132E
        for <david@stanaway.net>; Thu,  3 Jun 2004 09:31:35 -0500 (CDT)
X-Message-Info: 8+ggs369/bIdvoHulUPnaKEY41Q[1
Message-Id: <20040603143135.CF733146132E@david.dialmex.net>
Date: Thu,  3 Jun 2004 09:31:35 -0500 (CDT)
From: easqtl@qwest.net
To: undisclosed-recipients:;
X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on 
        dmxnocws13.dialmex.net
X-Spam-Level: ****
X-Spam-Status: No, hits=4.8 required=5.0
        tests=BAYES_80,MSGID_FROM_MTA_SHORT, NO_REAL_NAME autolearn=no
version=2.63
X-Evolution-Source: imap://david@localhost/
Subject: No Subject
Mime-Version: 1.0


-- 
David Stanaway <david@stanaway.net>