Old school interruption marketing is out. What I mean by interruption marketing is any type of marketing message that you did not ask for. This includes television ads, newspaper ads, radio ads, telemarketing, spam, cold calls, emails from your contacts that you did not specifically ask for, Facebook posts on your wall that you were not looking out for or anticipating, bill boards, and any other type of marketing which is not personal, relevant, or anticipated.
Personal, relevant, and anticipated marketing messages is what marketing guru Seth Godin calls Permission Marketing.
"Just because you somehow get my email address does not mean you have permission."
See every time you send something to a customer that is not anticipated or relevant, you decrease his desire to want to listen to you. What you want to do instead is to create a tribe. What is a tribe?
Here is a link to a great article on how to create a Tribe: