I see what you mean. I'd like to ask you another question. About the registration. Is it possible to renew my registration by mail?
Absolutely. You'll need to mail the bottom part of your registration renewal notice MV-3 or OP-3 to the address listed on that notice, as well as a personal check or money order payable to the Commissioner of Motor Vehicles for the fee.
I'd like to ask you if is it necessary to update my residence address in my DMV records if I change my email?
If you already have a residence address registered with the DMV, you are not required to change it when you change your email address, but you can change the residence address if you wish.