Test delivering offered by Litmus with Putsmail
GrapesJS Newsletter Builder is a showcase of what/how is possible to build an editor using the GrapesJS core library. Is not intended to represent a complete builder solution.
For any tip about this demo (or newsletters construction in general) check the Newsletter Preset repository and open an issue. For any problem with the builder itself, open an issue on the main GrapesJS repository.
Being a free and open source project contributors and supporters are extremely welcome.