Is it possible that the sender of an e-mail is in a different location than the one you can obtain from the e-mail's IP?
Thanks a bunch;)
Yes it is possible. They'd have to be using a proxy or vpn service to mask their real IP though.
I don't know much about email - however there's a lot of spam around. So I doubt if you can rely on the IP address in the email header being a guarantee of anything.
If somebody is sending email from a browser using gMail or some other browser based system, then the concept of an IP header in the email is limited. Would it mean the IP of the browser, or the IP of the email engine/server that sent the email on behalf of the user.
What's your use-case here?