When using the custom HTML section of the system, it is very helpful if you know HTML and can fix the issues that might crop up with it. On occasions when adding images, there might be times where you've added an image and it has no border/size which means that it comes up with "0" width and "0" height.

This isn't a problem in the system but when sent it will expand to the full size.

Please review your coding before proeceeding