View Full Version : How To: Find the IP address of the sender of an email

09-28-2013, 01:56 PM
The linked article has useful tips.

Why would you want an IP address? If you are trying to block someone from contacting you, perhaps someone you do not wish to do transactions with, you may want to find out if they are using an alternate identity. That is, if you are blocking "Suzy Creamcheese", and you hear from "Sally Curdled" but suspect it is actually Suzy using an alternate name ... these tips may help determine if that is the case.

Finding the IP address of the sender of an email (http://aruljohn.com/info/howtofindipaddress/)

The IP address reflects only the identity of the computer, not the individual.

If two people use the same computer, they will show the same IP.
Conversely, if a single individual uses more than one computer then they will show different IP's from the different computers.

In addition, some security software will assign changing IP addresses to messages and activity from a single computer.

So finding the IP address is not guaranteed to reveal an identity ...

... but if two IP's are the same, you can be almost completely certain the activity came from the same computer.