Can these three emails be from the same person?

Question

I have been getting some emails lately supposedly from a stranger but they seem to know certain things. I think it may be a someone I know and if this is the case our friendship is over.....please help I am tired of having bad friends around....
Here is the information from the first email:

Authentication-Results: mta439.mail.re4.yahoo.com from=yahoo.com; domainkeys=pass (ok)
Received: from 68.142.206.36 (HELO web32806.mail.mud.yahoo.com) (68.142.206.36) by mta439.mail.re4.yahoo.com with SMTP; Sat, 24 Jan 2009 16:44:11 -0800
Received: (qmail 62708 invoked by uid 60001); 25 Jan 2009 00:44:11 -0000
DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=X-YMail-OSG:Received:X-Mailer:Date:From:Subject:To:MIME-Version:Content-Type:Message-ID; b=esK6h07mKM0TAJfgGmikcyM8o/RJIYvCcnIxPSgHELwlX3ExhxiewpUjj1K1WgxOQjPoA64pterm1bRlvj5QevUcXQlpEnHn+2Lx8JGepL/RPI5IqfJZaUnbO3XUd3iBNQdQQgdkLDDbbDQ2BHj21LQNxvfnkaxDsS+Bh2+ORuU=;
Received: from [75.33.227.49] by web32806.mail.mud.yahoo.com via HTTP; Sat, 24 Jan 2009 16:44:10 PST

Heres the second:

Authentication-Results: mta187.mail.ac4.yahoo.com from=ymail.com; domainkeys=fail (bad sig); from=ymail.com; dkim=neutral (no sig)
Received: from 76.13.13.79 (HELO n2c.bullet.mail.ac4.yahoo.com) (76.13.13.79) by mta187.mail.ac4.yahoo.com with SMTP; Mon, 09 Feb 2009 09:23:45 -0800
Received: from [76.13.13.25] by n2.bullet.mail.ac4.yahoo.com with NNFMP; 09 Feb 2009 17:23:45 -0000
Received: from [76.13.10.181] by t4.bullet.mail.ac4.yahoo.com with NNFMP; 09 Feb 2009 17:23:45 -0000
Received: from [127.0.0.1] by omp122.mail.ac4.yahoo.com with NNFMP; 09 Feb 2009 17:23:45 -0000
Received: (qmail 13573 invoked by uid 60001); 9 Feb 2009 17:23:44 -0000
DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=ymail.com; h=X-YMail-OSG:Received:X-Mailer:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding:Message-ID; b=UMwmUCVERs+iah+3BnRqQr+z1zzKA9inR1OcvsSO+LpGFOq5YEzNsNRJdm6AFEqjKs0Xc7i7jorHU89E3bX+S4lBa+nVpSGxD+FneB8rjugX9gCW+VqqmuOEyeSeThrdfJMNwmmjblIKfqXLrZbBE8lzMg9QSkAZCm0LMwhX7Jw=;


and the third:

Authentication-Results: mta156.sbc.mail.mud.yahoo.com from=yahoo.com; domainkeys=fail (bad sig)
Received: from 207.115.36.63 (EHLO nlpi034.prodigy.net) (207.115.36.63) by mta156.sbc.mail.mud.yahoo.com with SMTP; Sat, 21 Feb 2009 15:13:49 -0800
Received: from n64.bullet.mail.sp1.yahoo.com (n64.bullet.mail.sp1.yahoo.com [98.136.44.189]) by nlpi034.prodigy.net (8.13.8 inb ipv6 jeff0203/8.13.8) with SMTP id n1LNDkmn024397 for ; Sat, 21 Feb 2009 17:13:46 -0600
Received: from [216.252.122.216] by n64.bullet.mail.sp1.yahoo.com with NNFMP; 21 Feb 2009 22:56:56 -0000
Received: from [67.195.9.82] by t1.bullet.sp1.yahoo.com with NNFMP; 21 Feb 2009 23:13:47 -0000
Received: from [67.195.9.99] by t2.bullet.mail.gq1.yahoo.com with NNFMP; 21 Feb 2009 23:13:47 -0000
Received: from [127.0.0.1] by omp103.mail.gq1.yahoo.com with NNFMP; 21 Feb 2009 23:13:47 -0000
Received: (qmail 67012 invoked by uid 60001); 21 Feb 2009 23:13:43 -0000
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s1024; t=1235258023; bh=74v5kJ6G487lX48czi0YaJiHbopyLdmGY+mFdR2/ZJQ=; h=Message-ID:X-YMail-OSG:Received:X-Mailer:Date:From:Subject:To:MIME-Version:Content-Type; b=aK6iBrYCar3uKeN2tiSFLPuQQLaOxW7P0P4I6+pbltWh1u9G0jbYHoV6CGCUSOSYsPGtngnRk1k713u/ZoLpoba1lRVprLw3hq83GCev2aT6GCaR9AYzoFLVPz/7cYfixuMeDYq2pC8/f+kUvo6p69vIkn810Ijbyp10VGZfy2g=
DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:X-YMail-OSG:Received:X-Mailer:Date:From:Subject:To:MIME-Version:Content-Type; b=4Ouv8an/yhrTueArjtvPhFp2qKqf0VwihZVJe33orM6BC/rspfI5Ks3Owa4XVCtnMmSxMRkhMBlHuPQSr3jr4Rcl3z5Naxs6tTmZSeJzyC9a6c9vUOEuLHh2L7ORxtgWrq3r98JKIqCpZCXL/3xQ8SOqlK9CNUD5muPtDw0mYno=;
Message-ID: <[e-mail]>
Received: from [170.170.59.138] by web111016.mail.gq1.yahoo.com via HTTP; Sat, 21 Feb 2009 15:13:42 PST

Answer 1

It is the same person but on the last one it`s a forwarded message so here is the link to make anonimous mails and get somo as the dude did http://krayze.free.fr/Main/Maileng.html



ITconsultant U agree with your opinion but remembre that hackers and crackers uses a lot of expensive equipment so they acn track whre the mail came from and set a proxy so they can send e-mail or any other stuff without the IT of the server make notice they can be invisible in your network .

Answer 2

Hello,

I work in the Internet Security field as an independent consultant. My main client base is large nationwide and international banks that have online banking capabilities for their customers. Without saying, security is of highest priority for them. I have been doing this kind of work for almost 15 years.



I both agree and disagree with some of your previous responses. The person named "napster" something or other is completely off base with his answer. No one person can say definitively that these emails are from the same person, only that they may have been routed through the same networks. There really is no simple way to track these all the way back to the same computer. If criminal activity occurs and enough evidence can be generated, a court order could be requested by a law enforcement agency. These orders are extremely hard to come by because of all kinds of safe guard and privacy laws enabled to protect peoples personal information. I have been involved with a few cases in which there were money crimes taking place via online banking accounts and on a lot of those cases requests for court orders to force the internet service provider to release all their logs in order to track back were denied. It does not seem that you have any kind of criminal activity here, rather suspicion of some of your friends. Even with the logs from the ISP it would be hard to trace to a specific computer simply because ISP's route their traffic throughout their network in order to maintain maximum efficiency. Sometimes that means a sent email may go from Omaha to Los Angeles to Hong Kong to Moscow to Seattle to St. Louis ending back up in Omaha to your neighbor down the street. Because digital information moves so fast it does not matter if it makes numerous stops because it can go all around the world in a minute fraction of a second. The very best that can be done without major court forced releases, keeping in mind the difficulty in getting such, is to see that the emails came from the same service provider like Hotmail, Gmail, Yahoo, etc etc. This is really meaningless because all of those ISP's have millions and tens of millions of users so just by the law of averages alot of your received emails could have come from them or been routed through their networks.



Like the other previous response, it takes a lot of effort, more than the average person has the smarts for, to create this kind of ruse. You probably are thinking too much about it. Is it possible they could be the same person, sure. But its like a one in 10 million chance. In all probability they are three different people who all happen to use Yahoo just like all of us here.



I hope that helps!

Answer 3

Unless your friends are in IT and knows how to send e-Mails using different e-Mail servers and if they want to really put the effort doing this non-sense tasks then the answer is yeah. It could be from the same person.



Otherwise, you are thinking too much, because this could be just spam emails which the rest of us just ignores.

Answer 4

It's hard to say since all three emails come from different IP addresses. However, they all come from Yahoo. So, it could be the same person sending the three emails from separate Yahoo email accounts.