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GUJUm0deL

GUJUm0deL

Programmer
Jan 16, 2001
3,676
US
Hi, I have always been interested in knowing this. The IP Address that is shown in some web-based email like Hotmail, GMail, etc. are they the IP of the user's machine? Or the IP of Hotmail and GMail, etc.? I once had a networking class where we discussed IP tracing, and this question was left in the air (due to class time restrictions). I always wondered if I sent an (hotmail) email my buddy in California who uses GMail, would he be able to see where I sent the email from (ie: NY, FLA, etc)

Anyone have any ideas?


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Just Imagine.
 
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tracing IP headers in emails is one thing, but webmail operates differently.

I wouldn't know the specifics of Hotmail or GMail (although if you know anyone with a GMail account it's fairly easy to test) - suffice to say that it is down to the configuration of the webmail. Some may include the originating IP (typically as an X-header) but not all will do this.

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just send yourself email from that account and check the headers

 
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Hi guys, I tried that. I have a GMail and an Hotmail account, and in both I only see Google or Hotmail IP address being shown. Hotmail is more in-depth as it shows the x-header and whatnot.



____________________________________
Just Imagine.
 
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BTW, took another look and:

X-Originating-IP comes back as my ISP provider
X-Originating-Email and X-Sender comes back as the email address itself


____________________________________
Just Imagine.
 
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Hotmail headers:
X-Originating-IP shows my current public IP

GMail headers:
Do not show my current public IP
 
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Serbtastic, hmmm. Then how for me it comes back as my ISP provider's IP? Does the ISP mask the IP Address? Who's your provider? Mine is Verizon.


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Just Imagine.
 
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