Bulk Email Marketing

I had been receiving all sorts of messages in my email inbox from this list which I subscribed to some time back. Most of them I used to ignore. I fact I was thinking of sending in a note to cancel my subscription when I received this message that held my attention. It was talking about duplicate content and had an offer. I immediately opened he message and read it in great detail. That taught me a big lesson about email marketing and opt-in lists.