mails without recepient address

[mmkhan]

Hi all,
today i received couple of spam emails even tough i receive couple of spam mails daily, but the eye catching thing was that one email lacked To: (recepient) field while the other one has someother mail address in To: field. Can someone explain how it reached my address if there was no recepient info in that. I m attaching the mail headers and contents/

Thanks

[Headers]
X-Gmail-Received: caa9afb6f4caae06292582de5475f8d1d53afe1b
Delivered-To: [email protected]
Received: by 10.38.76.72 with SMTP id y72cs26957rna;
Mon, 11 Jul 2005 11:05:53 -0700 (PDT)
Received: by 10.54.143.4 with SMTP id q4mr4229971wrd;
Mon, 11 Jul 2005 11:05:26 -0700 (PDT)
Return-Path: <[email protected]>
Received: from hotmail.com (bay108-f3.bay108.hotmail.com [65.54.162.13])
by mx.gmail.com with ESMTP id 38si8255176wrl.2005.07.11.11.05.20;
Mon, 11 Jul 2005 11:05:26 -0700 (PDT)
Received-SPF: pass (gmail.com: domain of [email protected] designates 65.54.162.13 as permitted sender)
Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC;
Mon, 11 Jul 2005 11:05:19 -0700
Message-ID: <[email protected]>
Received: from 65.54.162.200 by by108fd.bay108.hotmail.msn.com with HTTP;
Mon, 11 Jul 2005 18:05:19 GMT
X-Originating-IP: [82.206.247.138]
X-Originating-Email: [[email protected]]
X-Sender: [email protected]
Reply-To: [email protected]
From: "Vanessa Williams" <[email protected]>
Bcc:
Subject: kindly Assist My Client.
Date: Mon, 11 Jul 2005 18:05:19 +0000
Mime-Version: 1.0
Content-Type: text/plain; format=flowed
X-OriginalArrivalTime: 11 Jul 2005 18:05:19.0974 (UTC) FILETIME=[19903860:01C58643]
[/Headers]

<br /> Dear Sir/Madam<br /> l am V...ereto.<br />

[rcgreen]

Do you have your own mail server? Maybe they sent it directly to your ip address.

[HTRegz]

Hey Hey,

Could it be that they populated the BCC field and the software/server doesn't translate that into a To field but leaves it in place in the BCC field which is blank to the end-user... that could explain the presence of the BCC: in the headers.

Peace,
HT

[Edit]

Apparently different mail programs or servers (not sure where the translation is done) do deal with emails in different ways..

All of these emails were sent with blank To Fields and only the BCC populated

I also attempted Rogers Yahoo Email but it required I input a To Field...

Sent From: GMail Web-Based
Received by: GMail Web-Based
Note the populated BCC Field but no To Field
X-Gmail-Received: 0d4117da2efbe1c4ea48f7104d60cfa5e4fe4a51
Received: by 10.38.86.17 with HTTP; Sat, 23 Jul 2005 19:41:37 -0700 (PDT)
Message-ID: <[email protected]>
Date: Sat, 23 Jul 2005 22:41:37 -0400
From: Tyler X <[email protected]>
Reply-To: Tyler X <[email protected]>
Subject: Testing
Mime-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable
Bcc: [email protected], [email protected], [email protected], [email protected],
[email protected]
Content-Disposition: inline
Delivered-To: [email protected]



testing

Sent From: GMail WebBased
Received By: MS Outlook 2003
Note the lack of To and BCC Fields
Return-path: <[email protected]>
Envelope-to: [email protected]
Delivery-date: Sat, 23 Jul 2005 22:41:48 -0400
Received: from rproxy.gmail.com ([64.233.170.200])
by epsilon.main-hosting.com with esmtp (Exim 4.44)
id 1DwWR2-0002Hd-7t
for [email protected]; Sat, 23 Jul 2005 22:41:48 -0400
Received: by rproxy.gmail.com with SMTP id c16so368746rne
for <[email protected]>; Sat, 23 Jul 2005 19:41:37 -0700 (PDT)
DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws;
s=beta; d=gmail.com;
h=received:message-id:date:from:reply-to:subject:mime-version:content-type:content-transfer-encoding:content-disposition;
b=STYGMybDMc0C2gFxxag4L9zWlaTnjroxjNVwAa5ZY/XoOIUCoVJz8D4DGLYCGjP/iYqNC+L/3BDM/kPnY9wYkim55zANaZX1Y+VP8HMh6Kzrth2HDuPODGZzv54fZHiJNRHDszkvEHQjzqjpVqOe24MphIT0L0bJ1JyNrM+3Xos=
Received: by 10.38.90.57 with SMTP id n57mr691973rnb;
Sat, 23 Jul 2005 19:41:37 -0700 (PDT)
Received: by 10.38.86.17 with HTTP; Sat, 23 Jul 2005 19:41:37 -0700 (PDT)
Message-ID: <[email protected]>
Date: Sat, 23 Jul 2005 22:41:37 -0400
From: Tyler Reguly <[email protected]>
Reply-To: Tyler Reguly <[email protected]>
Subject: Testing
Mime-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable
Content-Disposition: inline

[/Edit]