Email Headers

Multiple email address, 1 iphone = multiple ip addresses?

If a person creates both yahoo and gmail email accounts and sends messages from an iphone, will the ip addresses match? I'm sure they are from the same person! Moderator Note: This is a revised repost. --------------------------------------------------------------------------- Strings...

Real IP

Dear Experts, I have question that may look simple to you , but for me is almost black dark to get thru. If i receive an email , an hotmail showing an IP originated from Germany, althought the person that is sending this email is supposed to be in Brasil, does it mean that for some reason this...