[header] How to use ip address finder [title] Find the ip number you wish to check. [step] The format of an ip address is numeric, written as four numbers separated by periods. Each number can be zero to 255. 
[substeps] To find the ip of an e-mail sent to you, investigate the message's " headers " by using your e-mail program's " details " or " properties " function. For example, in outlook express, select " properties " from the " file " menu, or just press alt + enter.