full-disclosure - Strange Emails -- What are they?

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Message-ID: <4486D04A.8030209@snosoft.com>
Date: Wed Jun  7 14:10:46 2006
From: simon at snosoft.com (Simon Smith)
Subject: Strange Emails -- What are they?

Hi List,
    I've had roughly one dozen people forward emails to me from
different companies asking me to figure out what these emails are. The
emails appear to be emails from the from the recipient. For example,
John Doe appears to be sending an email to himself, but he's not. In
reality when checking the mail server logs I find that the mails
originate from the Internet.  Other emails like the one below contain a
different sender than the recipient but the contents of the emails are
the same and they are still from the same domain.


-------------------- BEGIN EMAIL ----------------------

Received: from 83.145.66.70 ([172.18.12.134])
 by vms043.mailsrvcs.net (Sun Java System Messaging Server 6.2-4.02 (built
Sep
 9 2005)) with ESMTP id <0J0E00AVSNH9ETG0@...043.mailsrvcs.net> for
 xxxxxxx@...izon.net; Mon, 05 Jun 2006 15:55:58 -0500 (CDT)
Received: from raptor.net (83.145.66.70)
 by sv12pub.verizon.net (MailPass SMTP server v1.2.0 - 112105154401JY+PrW)
 with  SMTP id <5-25035-180-25035-2228-2-1149540957> for
vms043pub.verizon.net;
 Mon, 05 Jun 2006 15:55:58 -0500
Date: Mon, 05 Jun 2006 22:52:40 +0100
From: "Gil.novak" <xxxxxx@...izon.net>
Subject: 586876
X-Originating-IP: [83.145.66.70]
To: "xxx.xxxx" <xxxxxx@...izon.net>
Message-id: <ayoznyepbslfqdlqblr@...izon.net>
MIME-version: 1.0
Content-type: text/html; charset=us-ascii
Content-transfer-encoding: 7bit



-----Original Message-----
From: xxx.xxxx [mailto:xxx.xxxx@...izon.net]
Sent: Monday, June 05, 2006 5:53 PM
To: xxx.xxxx
Subject: 586876


969



-------------------- END EMAIL ---------------------

Is this just another instance of spammers fishing for legit addresses?
If so, then why the hell are they sending email from invalid addresses?
I can dig into this a lot further if I need to, but I wanted to see if
anyone else had any ideas about it first.  Thanks in advance!!!


-Simon