Returned mail: Data format error

["MAILER-DAEMON" <MAILER-DAEMON@ths.kth.se>]

The original message was received at Sun, 11 Sep 2005 11:47:05 -0700
from ths.kth.se [11.241.4.68]

----- The following addresses had permanent fatal errors -----
<kf-web-archive@ths.kth.se>

----- Transcript of the session follows -----
... while talking to 139.143.71.76:
554 5.0.0 Service unavailable; [155.151.35.50] blocked using bl.spamcop.net, reason: Blocked
Session aborted, reason: lost connection

xjz.exe