Where is the problem located ?
Is this at my provider ifrance.com ? or is it at Squeak-dev ?

------------------------------------------------------------------
 This is the Postfix program at host smtp.ifrance.com.

I'm sorry to have to inform you that your message could not be
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to <postmaster>

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

                        The Postfix program

<squeak-dev at lists.squeakfoundation.org>: lost connection with
    127.0.0.1[127.0.0.1] while sending MAIL FROM
------------------------------------------------------------------

Final-Recipient: rfc822; squeak-dev at lists.squeakfoundation.org
Action: failed
Status: 4.0.0
Diagnostic-Code: X-Postfix; lost connection with 127.0.0.1[127.0.0.1] while
    sending MAIL FROM


________________________________________________________________________
iFRANCE, exprimez-vous !
http://web.ifrance.com