X-Comment: Rename/Copy this file to quotawarnmsg, and make appropriate changes
X-Comment: See deliverquota man page for more information
From: Mail Delivery System <Mailer-Daemon@example.com>
Reply-To: support@example.com
To: Valued Customer:;
Subject: Mail quota warning
Mime-Version: 1.0
Content-Type: text/plain; charset=iso-8859-1
Content-Transfer-Encoding: 7bit

Your mailbox on the server is now more than 90% full. So that you can continue
to receive mail you need to remove some messages from your mailbox.