How do I customise things?
OK, take a deep breath, and repeat “Customising Soupermail is done with templates” a few times. EVERYTHING that Soupermail outputs (emails, HTML, XML, PDFs, etc) is customised by using templates, almost nothing is fixed in the code, and the config file simply controls the logical flow. Really look at the examples and the manual and see how templates are used. So, to change the formatting of the email that gets sent out, you would make a template for your email, and specify it with a mailtemplate:the config command. You should try out the template tutorial for more information.