I'd like to enable feedburner subscribe by email, but rather then using the email address that is used to login to my feedburner account for outbound emails sent to subscribers, is there no way to change the email address to something else?
Log in to your feed burner account. If you want to change your log in email, look to the top left of the page where is say's, "My Account", and you will be able to change your email there. If you want to change the email that subscribers see...go to "Publicize", and then, "Email Subscriptions", and you can change the email that people see when they get your updates.