Security Basics mailing list archives

Re: OT: IP of the originating machine from a gmail email


From: Ajay Agrawal <ac_agrawal () yahoo com>
Date: Mon, 31 Dec 2007 23:11:48 -0800 (PST)

I am also of same view gmail do not give IP details in
Internet header information
--- krymson () gmail com wrote:

I've always wanted to get around to testing this
with Gmail, but I've seen Hotmail and Yahoo leak the
originating IP in the past (not sure if it still
does). Here's my testing:

1) Send an email from your gmail account to some
other account you control. Use the web interface
when composing the email. Check the headers when you
get it. I don't expect this to show anything except
Gmail's server IP.

2) Send an email from your gmail account to some
other account you control. Use a fat email client
(Outlook, Eudora...) to compose the message and
connect to Gmail to send it. With other services,
this sometimes leaks the IP of the sender in the
header info.


Or ask Google if you have a legal reason.

You could also be a bit more active. Reply to the
Gmail account you want to probe, but include an
embedded image hosted on some remote server. When
the mail message is viewed, most people should still
auto-load images and you'll see the originating IP
in your logs. This is not foolproof; you need a web
server, need them to check from an identifying
location, need them to view images, and so on. This
should work better if you Google the email address
and try to appeal to the interests of the user based
on the resulting research...



<- snip ->
Hello,

I was wondering if there is a way to get the IP
address of the machine
that was used to compose an email that was sent
using gmail?

saqib
http://www.quantumcrypto.de/dante/



Thanks and best regards,

Ajay Agrawal 
+91 9886083116 

EnCE (EnCase Certified Computer Forensic Examiner) 
CISSP (Certified Information Systems Security Professional)
IBM Certified System Administrator Lotus Notes/Domino 6/6.5
MCP (Microsoft Certified Professional)



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