is there anyway to get your xbox live email becouse i got a new xbox and i haft to put my email in for my account and i cant remember it i found that there is a way you could see info from you hard drive from this link > http://www.theverge.com/2012/3/30/2913726/used-xbox-credit-card-information-hack-research
Transfer your profile from your old xbox to the new one. And try to check your emails for anything from xbox.com
you could always try to give microsoft a call. if you know most of the other personal information i'm sure they can tell you the email address.