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A Clever Spam Delivery Mechanism

This week a client forwarded me a spam email he received that I thought was interesting. It is reproduced below, with sensitive information and spam links redacted out:

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Wordpress: Format wp_head() Output as HTML 4.01 Transitional

While I'm no longer as much of a purist as I used to be, whenever I'm tasked with writing HTML, I usually go to great lengths to make sure that it is valid. For academic reasons beyond the scope of this artcle, my preferred DOCTYPE is still HTML 4.01 Transitional, and I almost always code - and validate my code - to that standard.

Having been doing a lot of Wordpress work recently, however, I've discovered an annoying Wordpress quirk that can make it difficult to produce valid HTML 4.01 Transitional code: the wp_head() method outputs markup formatted for XHTML, and thus, its output will register as invalid when validated against the HTML 4.01 Transitional DOCTYPE.

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