Feedback Returned mail: Data format error

[MAILER-DAEMON-738]

The original message was received at Tue, 3 Nov 2009 10:15:15 +0100
from ajax.dev.java.net [59.102.189.123]

----- The following addresses had permanent fatal errors -----
<feedback@...>

----- Transcript of session follows -----
  while talking to ajax.dev.java.net.:
>>> MAIL From:"Returned mail" <postmaster@...>
<<< 501 "Returned mail" <postmaster@...>... Refused