It won't serve as the written notice that's required unless you and the customer have done the E-SIGN dance. Of course that means if you email the customer without having done the E-SIGN thing, you'll also have to send the written notice required under the regulation.
If you send both the required written notice and the email courtesy alert, you don't have to adhere to the list of required info when sending the alert.
John S. Burnett
Fighting for Compliance since 1976
Bankers' Threads User #8