This is incorrect. Just because spammers use HTML email doesn't mean HTML email is evil. To give a very practical example, I sign up for newsletters from FontS

This is incorrect. Just because spammers use HTML email doesn't mean HTML email is evil. To give a very practical example, I sign up for newsletters from FontShop so I can be updated about new fonts. The email includes images to show how the fonts look. The utility of these emails would be drastically reduced if they were to use plain text. Reference: http://www.fontshop.com/blog/newsletters/june2011a/ http://www.fontshop.com/blog/newsletters/june2011a/