A have a form on our FormsCentral subscription that I have recently added an additional email address for receiving notification of form submission. The new recipient was set up as a 'Reader'. They complained that they were not receiving the email from Adobe notifying of submission although I receive notifications (as an 'Author') without problem.
I then set up an additional email address and this works sometimes but not all of the time. So I set up a third, and a forth and again I'm not getting consistent results.
I also notice that a requirement for an Adobe ID for the additional recipients does not seem to apply.Which means the recipient can log on to the form without a username or password.