No person should send an e-mail message that includes sexually oriented material and—
1) fail to include in subject heading the words "SEXUALLY-EXPLICIT"
and
2) fail to include in the body of the message:
a) the words "SEXUALLY-EXPLICIT"
b) a clear and conspicuous mechanism to opt out
c) a postal address, and
d) instructions on how to access the sexually oriented material without any other information or images.