Well you can change the email and you can allow that site to use the license by keeping the url as that url in there now however the license say if owned by Edward Oneil is always going to be owned by Edward Oneil. You can not email customer service and say he I want to give my friend Bob Johnson the license. Ownership can not be tranferred. I hope that clarifies what transferring means.
We can not prevent you from giving your friend your login details or from you changing your email but we do uphold our licensing policies.