exim and ...@xemacs.org

[Gerard Robin <robin.jag@free.fr>]

Hello,
I send a mail to xemacs-news@xemacs.org, (with mutt or xemacs)

'mailq' gives me:

 0m  1.4K 183PA4-0000bN-00 <>
          robin.jag@free.fr

'exim -Mvh 183PA1-0000bN-00' gives me:

183PA4-0000bN-00-H
mail 8 8
<>
1035155228 0
-ident mail
-received_protocol local
-body_linecount 29
-localerror
XX
1
robin.jag@free.fr

147P Received: from mail by mauritius with local (Exim 3.35 #1 (Debian))
	id 183PA4-0000bN-00
	for <robin.jag@free.fr>; Sun, 20 Oct 2002 23:07:08 +0000
044  X-Failed-Recipients: xemacs-news@xemacs.org
053F From: Mail Delivery System <Mailer-Daemon@mauritius>
022T To: robin.jag@free.fr
059  Subject: Mail delivery failed: returning message to sender
042I Message-Id: <E183PA4-0000bN-00@mauritius>
038  Date: Sun, 20 Oct 2002 23:07:08 +0000

Please, can someone explain me why I can't send the mails to 
....@xemacs.org with exim ?

TIA for your help.
 -- 
Gerard