Returned mail: Data format error

[Post Office]

The original message was received at Thu, 24 Aug 2006 18:26:42 +0200
from 98.230.255.31

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

----- Transcript of the session follows -----
... while talking to 175.195.59.56:
>>> DATA
<<< 400-aturner; %MAIL-E-OPENOUT, error opening !AS as output
<<< 400-aturner; -RMS-E-CRE, ACP file create failed
<<< 400-aturner; -SYSTEM-F-EXDISKQUOTA, disk quota exceeded
<<< 400