Then I suggest a simple change away from Google: Make some text asking a question "What is five plus 2?" And there's an empty text field next to it that on the

Then I suggest a simple change away from Google: Make some text asking a question "What is five plus 2?" And there's an empty text field next to it that on the backend looks for the trivial right answer. That should reasonably stop spam, and still allow a field based html mail sender. And eliminates a dependency on Google.