Undelivered Mail Returned to Sender

[Mail Delivery System]

This is the mail system at host mailman.agef.it.

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

<a-chrisc at agef.it>: host 192.168.116.2[192.168.116.2] said: 550 5.1.1 User
    unknown (in reply to RCPT TO command)
-------------- next part --------------
An embedded message was scrubbed...
From: "Support" <containers at lists.linux-foundation.org>
Subject: variazioni nel conto
Date: Mon, 25 Mar 2013 20:24:04 +1000
Size: 1640
URL: <http://lists.linuxfoundation.org/pipermail/containers/attachments/20130325/4325aaff/attachment.mht>