As I have complained quite loudly in this blog, I think it's fair to post a status update again.
Yesterday the emails started suddenly to work. So the major reason for my complains is gone.
What I still don't like that this issue was not at all communicated to project admins. It stopped to work, what was sort of announced in blog post. It started to work again without any announcement and last status update in blog still claims they do not work.
At least for direct question, we've received reply that they have intentionally re-enabled this service.