Ximian Evolution Demo
Evolution, by default, assumes that all HTML mail is spam and, therefore, doesn't show any images. You can change that behavior, but I thought it was a good idea to leave it alone. The message below came to me as a blank page that had a few lines in it. Once I told Evolution to load all images, I saw the page as you see it below. If I couldn't read HTML mail, I'd have no way of knowing if they were having a sale that was worth looking into.

DVD Express ad