The same problem after migrating to HRD and enabling billing. My app id is alconst-nitro-hrd.
To Support: Please, clear a charge or whatever, but make the app send emails This is very disappointing the app cannot send emails! -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To view this discussion on the web visit https://groups.google.com/d/msg/google-appengine/-/CgobmC5ZAywJ. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
