You probably get a lot of email and even more newsletters. My HTML email newsletters are all mixed in with my plain-text emails, and when I’m going through my inbox, it’s a quick and efficient process. I want to be able to get the point of each email quickly. When I open an HTML email and see rows of blank outlined boxes, I immediately think, “this isn’t relevant or necessary to me; moving on.” I very rarely decide to turn the images on. One alarming statistic found that 30% of recipients are unaware that images are even disabled in the first place!