Actually, I just tested it 3 times and had no problems, – and I just want to say, that your email, Dorothee, + the other mail which reported the problem, – both of these was actually recieved well enough, so there are these notifications, which you get, – but appently the mail is delivered as it should be.
So for the time being I will not change anything and leave the census mail link on the homepage.
Its unfortunate, and inconvenient, – but not apparently serious.