The use of mobiles to view emails has increased however the data plans are not dropping in cost in some countries where the volume is low, so images in emails can be permanently blocked from downloading. Therefore avoid using just one image as the entire marketing message. While this may save you time and investment it’s not a good look when the email message area is empty before images are downloaded.
Use a good mix of colour (created in HTML), text including Alt-txt (words that show in the image box before images are downloaded and also add a relevant image or two. Remember a picture speaks a 1000 words and conversion is higher when images are present. We recommend linking all images, and titles to the relevant click-through pages as well as the usual ‘click here to read more’ text links.