Question : Need Help Interpreting an E-Mail Message/Log

Hi Expert Exchange,

I am having a contest with the subscribers of my newsletter in which it is to their advantage to forward a specific e-mail to as many friends and family as they think would benefit from my newsletter.

One of the subscribers that entered, submitted an e-mail to a very large number of recipients, and I received the following message on the blind carbon copy that was included.

I am attaching most of the e-mail which I received, but because of confidentiality, I am omitting the specific e-mail addresses to which it was delivered; however I am indicating where in the e-mail they were listed. And the format they were listed in was nothing unusual, and will be described.

I don't understand from where this message was even created; whether it was through the e-mail server of the person who sent it, my own personal one, or the ISP of my website. In any case, it is critical for me to determine how many e-mail addresses actually received the e-mail.

I guess more accurately, the number that were properly sent and made it through the Internet. I just wanted to clarify that I am not looking for how many people actually opened up the e-mail, read it, or responded in any way to it.

Thank you for your help in this matter.
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Content:
 
This message was not processed because it contains an invalid recipient.
 
Return-Path: [email protected]
Received: from imta10.westchester.pa.mail.comcast.net (LHLO
 IMTA10.westchester.pa.mail.comcast.net) (76.96.62.14) by  sz0168.ev.mail.comcast.net with LMTP; Thu, 1 Oct 2009 06:03:20 +0000 (UTC)
Received: from webmail1.sitebuildit.com ([205.205.8.4])
	by IMTA10.westchester.pa.mail.comcast.net with comcast
	id nJ3K1c00Y05DMdH0AJ3Kaf; Thu, 01 Oct 2009 06:03:19 +0000
X-CAA-SPAM: N00000
X-Authority-Analysis: v=1.0 c=1 a=21tuqLARZM8A:10
 a=yKv+LGgCf6WeG1Z24WWuzw==:17 a=tEiEpHCnAAAA:8 a=jbwkOHYowJHnFz4TkW4A:9
 a=P5WqO3r30f6th1ufdTkA:7 a=r7hnhiZjvw87Tg1f1_gAwJPABpMA:4 a=SSmOFEACAAAA:8
 a=nUuTZ29dAAAA:8 a=PLDHyGKW_5U3vd5Sig4A:9 a=1KmylC7oOHJsHLRbma4A:7
 a=44XMQwuc5XLJiD7meoqHQieNopwA:4
Received: (qmail 22301 invoked by uid 1000); 1 Oct 2009 06:03:18 -0000
Delivered-To: best-family-photography-tips.com-newsletter-contest@best-family-photography-tips.com
Received: (qmail 22294 invoked from network); 1 Oct 2009 06:03:17 -0000
Received: from host4.axxessdns.co.za (74.200.203.186)
	by webmail1.sitebuildit.com with SMTP; 1 Oct 2009 06:03:17 -0000
Received-SPF: none (webmail1.sitebuildit.com: domain at afgdesigns.co.za
	does not designate permitted sender hosts)
Received: from dsl-247-10-206.telkomadsl.co.za ([41.247.10.206] helo=philip)
	by host4.axxessdns.co.za
	with esmtp (Exim 4.69)	(envelope-from )
	id 1MtEc2-0000vq-D9; Thu, 01 Oct 2009 07:53:35 +0200
From: "WM Niemand" 
To:[[[Here Is Where the Content of All the E-Mails Were Listed]]]
 
The format was: "Name of Person, or First Name Followed by "email" and all of this was followed by: 
 
The deleted e-mails were here.
 
FOLLOWING THE LIST OF ALL THE E-MAILS, WAS THIS INFORMATION:
 
Subject: Stop Taking Disappointing Photographs Once and for All
Date: Thu, 1 Oct 2009 07:55:52 +0200
X-Mailer: Microsoft Office Outlook, Build 11.0.5510
Thread-Index: AcpCW9VBfVkuDgtxQVCGn1IG4Zs8tg==
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579
X-AntiAbuse: This header was added to track abuse, please include it with
	any abuse report
X-AntiAbuse: Primary Hostname - host4.axxessdns.co.za
X-AntiAbuse: Original Domain - best-family-photography-tips.com
X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12]
X-AntiAbuse: Sender Address Domain - afgdesigns.co.za
X-Scrubber-List: not listed
X-Scrubber-ClamAV: clean
MIME-Version: 1.0
Content-Type: multipart/alternative;
	boundary="----=_NextPart_000_0010_01CA426C.AE03DB70"
 
This is a multi-part message in MIME format.
 
------=_NextPart_000_0010_01CA426C.AE03DB70
Content-Type: text/plain;
	charset="iso-8859-1"
Content-Transfer-Encoding: 7bit
 
* Then the actual content of the e-mail was located here.
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Answer : Need Help Interpreting an E-Mail Message/Log

This is the originating IP address (South Africa):

Received: from dsl-247-10-206.telkomadsl.co.za ([41.247.10.206] helo=philip) by host4.axxessdns.co.za
with esmtp (Exim 4.69) (envelope-from <[email protected]>)
id 1MtEc2-0000vq-D9; Thu, 01 Oct 2009 07:53:35 +0200
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