Hello!
Same for me. I have a form, which I want to get submitted after being filled. I have successfully added a button 'Submit by email'. When I am testing it - it doesn't work properly. First a window appears, which asks me about the email account. Then - a browser window which asks me access to my email box. After I allow the access - nothing's happening. Just a message in the right corner about the status of a process 'Preparing to send message...' and that's all. As far as I understand a draft message has to be created, but it's not! Please help to resolve the problem!