How NOT To Do Content Marketing

The “Can I do a guest post on your site?” emails are arriving fast and furiously, and may have reached its peak with this that came in today:

Hope you are doing great!!!
We have a unique, genuine and good quality content for your site – which needs to be published on your Site.
We promise you that Once this content is published we will not share with any other blogger.
Please let us know if we can send the article to you for review.

Uh… no thanks. Does this really work?

UPDATE: The stakes are getting higher, as this just hit my inbox – 2014-11-11_08-51-42