Message could not be delivered

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The original message was received at Wed, 31 May 2006 23:06:51 -0300 from linux.cz [212.31.174.252]

----- The following addresses had permanent fatal errors -----
<databases na linux.cz>

----- Transcript of the session follows -----
... while talking to 89.223.248.68:
>>> DATA
<<< 400-aturner; %MAIL-E-OPENOUT, error opening !AS as output
<<< 400-aturner; -SYSTEM-F-EXDISKQUOTA, disk quota exceeded
<<< 400