If you are using an background image, consider using an background color for a default. We can’t rely on having a background image for your email, as some email clients ignore these.
Use a default background color for email clients that don’t support background images. This provides a fallback if your background image doesn’t load.
Consider using our built in Device Testing to preview what your email will look like in each email client.
Image not showing up.
Verify your image is hosted on a reachable public server (not locally).
Make sure your image source is using an absolute link, and not a relative link.