2. From the View menu, select the option that lets you view all or extended headers. On a Mac, click View > Message > All Headers
On a PC, on Options, click the dialogue box launcher > Message Options dialogue box (Properties) > Internet Headers
3. Next to the Received section you will see something like "from..... and an IP address as described above. Select one of those, and copy it to the clipboard. In this case, we'll select 126.96.36.199, and copy it.
4. Open a command console. Only this time, instead of doing a ping on a known address run a whois check.
5. In your terminal window, by the flashing cursor, type
Note: You may not want to use the terminal, or perhaps it's not loaded on your computer. Instead, you can try using an Internet lookup, such as ip-lookup, which gives you much the same information as a whois lookup, and in many cases, much more.