And fixing the webmaster contact on the main page would probably be a good idea.
references/excerpts: http://www.balug.org/
Quoting Mail Delivery Subsystem MAILER-DAEMON@ludo.dreamhost.com:
The original message was received Mon Sep 5 17:18:19 2005
----- The following address had permanent fatal errors ----- webmaster@balug.org: User unknown
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[dh2]