[atrt2] Message could not be delivered

[The Post Office]

The original message was received at Mon, 10 Aug 2015 09:24:42 +0700
from icann.org [70.150.71.162]

----- The following addresses had permanent fatal errors -----
atrt2 at icann.org

----- Transcript of the session follows -----
... while talking to 157.220.204.224:
554 <atrt2 at icann.org>... Mail quota exceeded
554 <atrt2 at icann.org>... Service unavailable

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