Subject: Delivery failure, mail system error!

Hi,
  I am sorry to tell you that some error occurred in our mail system,
your message to "%(rcpt)" cannot be delivered, please contact our mail
system administrator to settle this problem.

Below is the original mail information:
   Time:    %(time)
   From:    %(from)
   To:      %(rcpts)
   Subject: %(subject)
   Length:  %(length)
