Create your subscribtion form on the website
In Ubivox we create a URL with a subscribtion form that you can use on your site, the guide here shows where to find it and how it looks and what parameters and HTML you need to have to make your own status pages.
HTML editing in Ubivox
This guide elaborates how you can edit in the templates underlying HTML codes.
External resources in Ubivox
This guide elaborates how you merge external resources into your newsletter. The guide contains examples in HTML and RSS.