Great! Thanks for the direction. My client was able to solve the problem, the form is running. Please do not ask me what exactly he has done now. I suspect he changed the transport route to smtp – but the details are beyond my capabilities.
The plugin as such is totally great. 50% of my customer websites require a form solution. The ability to use the plugin and the control via the panel are an absolute benefit. Accordingly I was euphoric.
What I couldn’t find out, for example, was how to get the Formbuilder into a Builder section. Formbuilder requires the Builder plugin, but how exactly do I integrate the form part within the blueprint… ? This would be a nice part of a good documentation.
Then the problem in Internet Explorer: IE wants to save some JSON file when sending the form. Internet Explorer stinks, I know, but some customers insist that everything runs smoothly here, too.
In the meantime, also on the customer side, I had from time to time error messages while sending the form, in different browsers, which were simply not traceable. And I am currently counting on the fact that maybe one or the other problem will come up again.
And now the very latest sending problem, which was probably halfway customer server-specific.
All in all a thumbs up for the plugin (!!!) plus the wish for a better documentation.