Thanks! That was the problem.
On Fri, May 6, 2016 at 2:58 PM -0700, "'Zeehad (Cloud Platform Support)' via Google App Engine" <google-appengine@googlegroups.com> wrote: Are you requiring user authentication for a Google Apps domain? From the settings page, check to see what Google Authentication is set to. -- You received this message because you are subscribed to a topic in the Google Groups "Google App Engine" group. To unsubscribe from this topic, visit https://groups.google.com/d/topic/google-appengine/fzUnuHWlL6M/unsubscribe. To unsubscribe from this group and all its topics, send an email to google-appengine+unsubscr...@googlegroups.com. To post to this group, send email to google-appengine@googlegroups.com. Visit this group at https://groups.google.com/group/google-appengine. To view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/610606ef-7154-488e-9e42-7ea43a4b6d0a%40googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-appengine+unsubscr...@googlegroups.com. To post to this group, send email to google-appengine@googlegroups.com. Visit this group at https://groups.google.com/group/google-appengine. To view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/179CBCA5BE0DFEAB.1D14AB1E-02EA-4E9B-ADFF-3C395CCFCED8%40mail.outlook.com. For more options, visit https://groups.google.com/d/optout.