Multiple email address, 1 iPhone = multiple IP addresses?

6950 pts.
Email Headers
Email security
Forensic analysis
IP address
If a person creates both yahoo and Gmail email accounts and sends messages from an iPhone, will the IP addresses match? I'm sure they are from the same person! Moderator Note: This is a revised repost. --------------------------------------------------------------------------- Strings below...X-Message-Delivery: Vj0xLjE7dXM9MDtsPTA7YT0xO0Q9MTtTQ0w9MA== X-Message-Status: n:0 X-SID-PRA: [intentionally blank] X-SID-Result: Pass X-Message-Info: JGTYoYF78jGBcAljEIdFx6L2Ei0lhDaYvUAA2hWS8VRUGibHmVnQcbmPXZkfWS0bcnLqG62VGDS6XMnYQBp8RSQ+CcQROTE5 Received: from ([]) by with Microsoft SMTPSVC(6.0.3790.2668); Sun, 15 Mar 2009 14:42:01 -0700 Received: by with SMTP id 22so1117841gxk.21 for <[intentionally blank]>; Sun, 15 Mar 2009 14:42:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;; s=gamma; h=domainkey-signature:mime-version:received:date:message-id:subject :from:to:content-type:content-transfer-encoding; bh=f5mczPvK5SGFpzCU/vdejJWSD+pSXCw5mb5i3FGoxfc=; b=JXtLUkx1HqFVuy3TMaYjhiJx7/vytXYZpDQNBBdE1b9OP+/4VqtHkcI1i01+Vm6L1F EI9vD1gwDnRuH88aDbeWEZ/A0m8V7yynvSMKhP68emy/4vVSkB12svGci3fNkJZQdn31 0RUo6F1D207yb4SSiW6ERXCJ2FJXP4yccJaQ4= DomainKey-Signature: a=rsa-sha1; c=nofws;; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type :content-transfer-encoding; b=KSForrbU1j6pKKTy8qpEc0P/F1o0Pp0jMjuI0NDwD8WzCvGb45GOsqtMBbzK8Oqd8d u4ULeJMWguGILwAjQbJpwV1DJSnyfWdxAvOjkMu+ceYrdx9TmDy+8NQpFpGuvXFGQnm4 09aXE2TOiQ4cagXeS/pkjkj6ewvk04G3E5CPk= MIME-Version: 1.0 Received: by with SMTP id p20mr1793528wfi.169.1237153320597; Sun, 15 Mar 2009 14:42:00 -0700 (PDT) Date: Sun, 15 Mar 2009 17:42:00 -0400 Message-ID: <> Subject: From: [intentionally blank] To: [intentionally blank] Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-Path: [intentionally blank] X-OriginalArrivalTime: 15 Mar 2009 21:42:01.0178 (UTC) FILETIME=[DFA8C3A0:01C9A5B6] --------------------------------------------------------------------------- X-Message-Delivery: Vj0xLjE7dXM9MDtsPTA7YT0xO0Q9MTtTQ0w9Mw== X-Message-Status: n:0 X-SID-PRA: [intentionally blank] X-Message-Info: JGTYoYF78jEMTprTl8w331CkoQizmpCmqxnCg3C7/6rYnU99cUrLT4ytFant33YXRXqzbcVi6ziO9TLT8hBWZbtRXESczgUd Received: from ([]) by with Microsoft SMTPSVC(6.0.3790.3959); Wed, 28 Jan 2009 17:31:48 -0800 Received: from [] by with NNFMP; 29 Jan 2009 01:31:47 -0000 Received: from [] by with NNFMP; 29 Jan 2009 01:31:47 -0000 Received: from [] by with NNFMP; 29 Jan 2009 01:31:47 -0000 X-Yahoo-Newman-Property: ymail-3 X-Yahoo-Newman-Id: Received: (qmail 93602 invoked by uid 60001); 29 Jan 2009 01:31:47 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024;; h=X-YMail-OSG:Received:X-Mailer:Date:From:To:MIME-Version:Content-Type:Message-ID; b=Kyk+z8uEhy7PhXymWywj4uHHzQgCSi6Iyk25Spmc1AEbaMrz5QyDcBF8h4FyRZdaP+QTz4BausIJw6qxfyJiyC85sETztVisBi6Ul+i+KjVblOZAkUVuaqaBdPVX27uKqJNMSvvNWpWm19TIAOLTHtGFhRS/C3ace66LQ8yPzLE=; X-YMail-OSG: okFWDCUVM1ncBFRigGEtOjhqwUTOIbFC7e5frf2NHUJq1JLFXHR6g.lF.WiOGSsqeQIz6TwCgeMusW06VhTxrD7g.S_d5_COfviLxVpMOm_iBFdOHTD_618Zl1foUDFAX6nKKidfA0SRGQKq8AZYys45 Received: from [] by via HTTP; Wed, 28 Jan 2009 17:31:47 PST X-Mailer: YahooMailWebService/ Date: Wed, 28 Jan 2009 17:31:47 -0800 (PST) From: [intentionally blank] To: "[intentionally blank]" [intentionally blank] MIME-Version: 1.0 Content-Type: multipart/related; boundary="0-1787724010-1233192707=:92982" Message-ID: <> Return-Path: [intentionally blank] X-OriginalArrivalTime: 29 Jan 2009 01:31:48.0420 (UTC) FILETIME=[5A7E7040:01C981B1] --0-1787724010-1233192707=:92982 Content-Type: text/html; charset=us-ascii

Answer Wiki

Thanks. We'll let you know when a new response is added.

The IP addresses will not match. The IP address identifies the email server and not the client.

Moderator Note: This answer was originally provided by Mshen. I’ve moved it here from the original post.

Actually there was more to the answer – the headers above may or may not show the client’s IP address. It depends on the receiving system and what addresses are shown in the headers. To read the headers for IP address traversals, start at the bottom and work up to the top.

Discuss This Question:  

There was an error processing your information. Please try again later.
Thanks. We'll let you know when a new response is added.
Send me notifications when members answer or reply to this question.

Forgot Password

No problem! Submit your e-mail address below. We'll send you an e-mail containing your password.

Your password has been sent to:

To follow this tag...

There was an error processing your information. Please try again later.

Thanks! We'll email you when relevant content is added and updated.


Share this item with your network: