Bulk Email
Various sources state that about 70% to 80% of bulk email campaigns are in HTML format. The main reason why the majority of e-mail marketers choose HTML over plain text is that you can use images, which are proven (at least in many instances) to drive your sales up. But have you ever received HTML e-mails where you the images weren’t displayed correctly? There is no point in using HTML, paying for extra bandwidth and designers’ work,
if your recipients won’t see what they are supposed to see.