bounced mail to list

[Jeremy Gransden]

I am getting mail bounced from anther address when I send to this List. I am
not familiar with the details of smtp so i am unsure what the problem is.
here is the bounce reply:

This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of
its recipients. The following addresses failed:

  <freebsd-questions at freebsd.org>

SMTP error from remote server after RCPT command:
host mx1.freebsd.org[216.136.204.125]:
554 <mout.perfora.net[217.160.230.41]>: Client host rejected: Access denied


--- The header of the original message is following. ---

Received: from [24.210.101.241] (helo=[192.168.2.4])
        by mrelay.perfora.net (node=mrelayus0) with ESMTP (Nemesis),
        id 0MKoyl-1GeED71etM-0004UA; Sun, 29 Oct 2006 12:12:40 -0500
Subject: Re: How to Print from WIN XP to Samba
From: Jeremy Gransden <jeremy at gransdenonline.com>
To: freebsd-questions at freebsd.org, Derrick Edwards <
derrick at uniquestrength.net>
In-Reply-To: <200610291136.58643.derrick at uniquestrength.net>
References: <200610291136.58643.derrick at uniquestrength.net>
Content-Type: text/plain
Date: Sun, 29 Oct 2006 12:12:30 -0500
Message-Id: <1162141950.5657.9.camel at localhost>
Mime-Version: 1.0
X-Mailer: Evolution 2.6.1
Content-Transfer-Encoding: 7bit
X-Provags-ID: perfora.net abuse at perfora.net
 login:16d1aaa0561ff7607be5ab6067d749ac


Can some one point me to where my problem could be?

thanks,
Jeremy