Cannot Subscribe

Good evening,

I cannot seem to subscribe to the public-html@w3.org mailing list.  Instead
of subscribing me, it sends me the following e-mail:

A message that you sent could not be delivered to one or more of its
> recipients. This is a permanent error. The following address(es) failed:
>
>   pipe to |/usr/local/bin/autoreply public-html-request
>     generated by public-html-request@w3.org
>     local delivery failed: retry timeout exceeded
>
> ------ This is a copy of the message, including all the headers. ------
>
> Return-path: <xaxiobrandish@gmail.com>
> Received: from mail-qa0-f47.google.com ([209.85.216.47])
>         by lisa.w3.org with esmtps (TLS1.0:RSA_ARCFOUR_SHA1:16)
>         (Exim 4.72)
>         (envelope-from <xaxiobrandish@gmail.com>)
>         id 1UGAwS-00063I-4K
>         for public-html-request@w3.org; Thu, 14 Mar 2013 16:23:45 +0000
>

Please assist?

--Xaxio