Re: Fw: Anonymous Qmail Denial of Service

[D. J. Bernstein]

I've sent a response to bugtraq explaining how to identify the uid that
filled up the queue.

My message also explains a much more powerful series of four attacks
against all MTAs, including the IBM Secure Mailer. These attacks can be
carried out from anywhere on the Internet, not just the local machine.
They keep the mail queue flooded for several days.

---Dan