94777, If you want to change your e-mail address, then subscribe with the new address and unsubscribe with the old one.
2
94777, No more e-mailing the website master to unsubscribe.
3
94777, If this occurs and you definitely don't want to receive any promotional mail from the company, be sure to unsubscribe (legally, all companies must offer this option in their emails).
4
94777, However, you can quickly unsubscribe to the list if you would like.