Hi again, Thank you for the link. The sender is indeed not on the list, although it must have been in the past since emails have worked fine up until now.
I've tried adding the sender but get a message saying "Unable to add an email address from another domain". Looking further, it seems that my custom domain settings, including the SSL certificate, have complete disappeared from the application in the console! Let me stress again: I am the only person with access to the cloud console, and I have definitely not made any changes anywhere in the last couple of days. How can this happen?? The custom domain, and the SSL, continue to be functional despite the console showing no trace of these; it is currently only emails that are affected. I could try to configure custom domain and SSL all over again, but 1) I'm worried this will mess something up, and 2) I'd like to know how what has happened is possible. Any ideas? Thank you, Michael -- 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/88d96c4f-bcbe-45fb-9531-a57b3cbce3f7%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
