It doesn't need to be disassociated at all. Just allow to independently verify ownership of the domain.
The only real problem is email. I already suspected this is why Google may be considering to deprecate email and partner with sendgrid. I agree though, that the App Engine team is most likely not to blame (other than not having this feature available on day one). -- 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 http://groups.google.com/group/google-appengine. For more options, visit https://groups.google.com/groups/opt_out.
