How can you tell if email from two different people are coming from the same computer.?

I have checked the headers from both emails but can't make sense out of it. One is being sent to hotmail from a hotmail address and the other is from a Yahoo address being sent to hotmail.Any body that can help with this I will be very thankful

How can you tell if email from two different people are coming from the same computer.?
You have to know the IP address because the IP address is unique to each computer. If they are the same, they are coming from the same computer.
Reply:Excuse me, maybe I am not understanding your question correctly, but my husband and I share the same computer, I have a hotmail address; he has a yahoo address. Therefore we can both send out two separate e-mails from one computer. But maybe you are asking something else.
Reply:nope, sorry there is no way you can track the Ipaddress or the physical location of that PC from which you got the mail.
Reply:try to find the ip address
Reply:i don't think u can

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