I think most of you are under the impression that a person has to be opted onto a list otherwise it is called SPAM..
Please everyone read the CAN-SPAM law of 2003.
As long as you follow the guidelines..Ie; Way for them not to be contacted by you again, address at the bottom, not using a deceptive headline ETC..
It is A-OK to do..
Just because you have an OPTIN doesn't make it OK to use deceptive headlines either as even though they are an optin, you CAN NOT use deceptive headlines and that my friends is what would be considered spam.
That is all