[Shackweb] Warning: message 1IBi0N-0005f2-4I delayed 12 hours

[Mail Delivery System]

This message was created automatically by mail delivery software.
A message that you sent has not yet been delivered to one or more of its
recipients after more than 12 hours on the queue on cat.ourshack.com.

The message identifier is:     1IBi0N-0005f2-4I
The subject of the message is: Cron <shackweb@cat> /home/shackweb/bin/build members/status.html
The date of the message is:    Fri, 20 Jul 2007 03:14:07 +0100

The address to which the message has not yet been delivered is:

  Shackweb@lists.ourshack.com
    (generated from shackweb@ourshack.com)
    Delay reason: local delivery failed

No action is required on your part. Delivery attempts will continue for
some time, and this warning may be repeated at intervals if the message
remains undelivered. Eventually the mail delivery software will give up,
and when that happens, the message will be returned to you.