what that means is that its code inside the email...they dont have your information.its a default code placed into the email that after your email is sent it is then scanning your ip and the code is filling in the blanks...thats how it shows your city...and why it can be off...my ip when its open shows that im 3 cities over.that is also why riu shows,scan code, can tell what sites you visit or get email from, and a error in the code is why riu shows up for some and not others.you people simply got spam mail whether it be from a hacker or from a 3rd party source.they dont have your information...codes in the email are placing your information in there after its sent depending on your ip....once again they are not out to get you people...but they are doing what they set out to do...turn a bunch of stoners all paranoid.