Marco, I'm seeing the same thing, where the REST calls are returing success but the notifications are not being sent.  In fact I had one batch the was sent at 5:30 PM yesterday and I received in my inbox at 1:44 AM today.   I cannot verify if the others were delivered.  There were a number notifications total -- all sent ...

I am also seeing this on some apps. It seems to be happening about 25% of the time.Failing URL  http://api.msappspace.com/proxy/relay.proxy?opensocial_authtype=SIGNED&opensocial_token=<removed>&opensocial_url=<removed>         

Thanks Johnny, It is not my email that has the dev account, so I will get the email. I will reply to that now. tom

Hi -- do you knowis this might be fixed by the weekend? Thanks much, Also I wasn't sure you had all the apps in question, there are a few in this state. Tom