Is there a way to center an image from a link in the body of the email? So, I have a "click here" link that goes to a jpg image, but the image is left aligned and I want it to appear centered when someone clicks on the link in the email?
To my konwledge you're out of luck unless you do some hacked way like below. A web browser will always display non formated pages to the top upper most left. It's how it reads the code.
Try creating a .pdf document of sorts and include the image on an 8.5. x 12 page where you desire. This may be a very very hacked way of getting the image to display center.
Upload and test away, may have to do this a bunch to get your needed desire. Hosted URLs cannot include CSS.