DH: You can legally market to anyone that agrees to a TOS when they enter their email address. If they double confirm it is even better.
So long as you have the email address, IP of signup and the datestamp you are complete and totally safe. If they tried to take you to court you would win hands down no questions asked.
Canspam blocks bulk mailing not legal optin mailing.
So this program is SAFE from anything canspam.
