How often do you look in the spam folder of your email? How often do you open your spam folder and delete everything in it without reading the subject lines? Do you ever wonder how often you “Delete Forever” emails that you've signed up for? Do you ever wonder how often people do that same thing to emails you've sent to them?
One of the goals of most email marketers is to keep their emails from ending up in the spam folders of the intended audience and consiquently getting blacklisted. And that can be a pretty big challenge.