pushing box not send to email (troubleshooting)

hi programmer,

i want to ask something ,about pushing box send to email.
Before this we use the arduino uno to send the notification to email using pushing box and it successful
but today 15/3/2014 we try it again ,the arduino success to send the signal to pushing box but pushing box NOT send any notification to email, is it pushing box server down ? or pushing box line problem??
because we try the test demo from pushing box to email, but it not send notification to the email...

You don't even include a link to that "pushing box" service and you write about it as if it's included into the basic Arduino package. It's not. If you want some help, provide the necessary information. In addition to the link to all services/libraries you used we need at least the sketch you used (complete source code) and a description of the hardware involved.