Eloqua requires that you set up a separate header and footer for your emails before you can preview or send. Because all of our content is within the template, we just need to set up a blank version of each.
Setting up the Header
Go to Assets > Components > Email Header
Just leave the whole area completely blank and press Save
Your header will appear in the list as “Untitled Email Header”. Right-click to rename it to something you will recognise.
Setting up the Footer
Go to Assets > Components > Email Footer and repeat all of the above steps for the footer too.