I've been getting over the last months several of these notices. Sometimes a few per day. What's the problem? Can't this be avoided? This is the mail system at host mail.centos.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 <centos at centos.org>: mail forwarding loop for centos at centos.org Final-Recipient: rfc822; centos at centos.org Original-Recipient: rfc822;centos at centos.org Action: failed Status: 5.4.6 Diagnostic-Code: X-Postfix; mail forwarding loop for centos at centos.org Kai -- Kai Schätzl, Berlin, Germany Get your web at Conactive Internet Services: http://www.conactive.com