Returned mail: Data format error

[fileserv@xxxxxxx]

The original message was received at Sun, 17 Jun 2007 20:04:19 +0200
from tgv.com [77.247.153.51]

----- The following addresses had permanent fatal errors -----
debian-doc@xxxxxxxxxxxxxxxx

----- Transcript of the session follows -----
... while talking to lists.debian.org.:
>>> MAIL FROM:fileserv@xxxxxxx
<<< 506 Domain unknown

Dangerous Attachment has been Removed.  The file "document.scr" has been 
removed because of a virus.  It was infected with the "W32/Mydoom.N@mm" virus.  
File quarantined as: "[disabled]". 
http://www.fortinet.com/VirusEncyclopedia/search/encyclopediaSearch.do?method=quickSearchDirectly&virusName=W32%2FMydoom.N%40mm