I followed the links for enquiring about submitting an article and got the following message
Geoff
The original message was received at Thu, 10 May 2007 20:37:45 +1000
from c211-30-132-71.carlnfd4.nsw.optusnet.com.au [211.30.132.71]
----- The following addresses had permanent fatal errors -----
<
contribute@iceinspace.com.au>
(reason: 550 <
contribute@iceinspace.com.au>: Recipient address rejected: User unknown in virtual mailbox table)
----- Transcript of session follows -----
... while talking to mail.aliasness.com.:
>>> DATA
<<< 550 <
contribute@iceinspace.com.au>: Recipient address rejected: User unknown in virtual mailbox table
550 5.1.1 <
contribute@iceinspace.com.au>... User unknown
<<< 554 Error: no valid recipients