Problematic Email address found!

There is a problem with the email address supplied by our member.
He or she gave us hm345wo@duc220.uni-duisburg.de
but on 2004-11-03 21:10:23 our mailserver got an error 550: Host unknown (Name server: duc220.uni-duisburg.de: host not found).
If you see what is wrong, please send me a note with the form below.
Thanks,
Werner (Chaos-Group-Postmaster)


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