Gmail ip address find out

First Log into your Gmail account with your username and password.
Open the mail.
To display the headers
Click on More options corresponding to that thread. You should get a
bunch of links.
Click on Show original
You should get headers like this
Gmail headers : name
Look for Received: from followed by a few hostnames and an IP address
between square brackets. In this case, it is
65.119.112.245.
That is be the IP address of the sender
Track the IP address of the sender.