When you uploaded an image as a background to your email and it doesn't fit the box like in the example below, here is what you need to do.
- Click ''Edit'' in the toolbox setting of your background image.
2. Click ''Transform'' in the image gallery.
3. Turn on the ''Lock resolution switch''
4. Change the size there into a smaller size.
5. Click ''Export''
6. You can change the box spacing by setting the top and bottom padding.