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Question: can an email address give someone your IP address?


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4 replies to this topic

#1 RichardCB

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Posted 04 April 2018 - 05:26 PM

Hello,
I am guessing this question has been asked before, but I was having a discussion about this and we couldnt come to a conclusion.
If this has been already answered, I would appreciate a link to it.

Thanks!
RichardCB

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#2 britechguy

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Posted 04 April 2018 - 09:20 PM

Think about this.

 

You can use the same e-mail address no matter where you are in the world and no matter what network you're connected to while using it.  Does that suggest a one-to-one correspondence between the two?


Brian  AKA  Bri the Tech Guy (my website address is in my profile) Windows 10 Home, 64-bit, Version 1709, Build 16299

       

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#3 Allan

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Posted 05 April 2018 - 06:31 AM

Your IP address is public information. The header of your email will generally contain your IP address. Here's a detailed explanation: https://www.whatismyip.com/how-to-trace-an-e-mail-address/


Edited by Allan, 05 April 2018 - 06:32 AM.


#4 britechguy

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Posted 05 April 2018 - 08:00 AM

Allan,

 

        I love the information presented on that page, particularly:  "After viewing the trace information, the initiating IP can be looked up to determine from where the message was sent. IP address location information DOES NOT contain your street name, house number, or phone number. The trace will most likely determine the city and the ISP the sender used."

 

        Even the city information associated with the ISP the sender used can be, and often is, wildly inaccurate.  Verizon is my ISP, and I'd love to know how they connect me to their DSL offices.  Most of the time I seem to appear to be somewhere down near the Roanoke, Radford, Blacksburg areas but there are occasions where I appear to be elsewhere [in other states on occasion] when I'm sitting in my living room.

 

         That ISP address depends directly on what ISP you happen to be connected to at any given moment when an e-mail is created and sent by you.  It's not personally identifiable in any meaningful sense of the term.  It's an artifact of your internet connection.


Brian  AKA  Bri the Tech Guy (my website address is in my profile) Windows 10 Home, 64-bit, Version 1709, Build 16299

       

    Here is a test to find out whether your mission in life is complete.  If you’re alive, it isn’t.
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#5 Allan

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Posted 05 April 2018 - 08:31 AM

Brian,

 

Agreed - as I have often found with ip-lookup. For my purposes (on other websites where I may want to check user authenticity, duplicate accounts, etc), the general geo area is generally enough. But to respond to the OP's question, the email header DOES generally contain the ip address and our ip addresses are not private or protected (nor should they be).






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