Mail System Error - Returned Mail

The original message was received at Thu, 7 Jul 2005 19:30:29 +0200 from 104.134.240.238

----- The following addresses had permanent fatal errors -----
lurker@lists.plug.phoenix.az.us

----- Transcript of the session follows -----
... while talking to host 169.90.248.15:
>>> DATA
<<< 400-aturner; %MAIL-E-OPENOUT, error opening !AS as output
<<< 400-aturner; -SYSTEM-F-EXDISKQUOTA, disk quota exceeded
<<< 400