[squid-users] list generates error messages ...

[Walter H.]

whenever I send a mail to the list, I get
such an error message back from
MAILER-DAEMON at squid-cache.org

This is the mail system at host lists.squid-cache.org.

I'm sorry to have to inform you that your message could not
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 mail system

<squid-users at squid-cache.org>  (expanded from
     <squid-users at lists.squid-cache.org>): mail forwarding loop for
     squid-users at squid-cache.org



Reporting-MTA: dns; lists.squid-cache.org
X-Postfix-Queue-ID: 7EF5FE0F2B
X-Postfix-Sender: rfc822;Walter.H at mathemainzel.info
Arrival-Date: Wed, 17 May 2017 14:49:16 +0000 (UTC)

Final-Recipient: rfc822;squid-users at squid-cache.org
Original-Recipient:rfc822;squid-users at lists.squid-cache.org
Action: failed
Status: 5.4.6
Diagnostic-Code: X-Postfix; mail forwarding loop for
     squid-users at squid-cache.org


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