Comment 4 for bug 609999

Hi there
can yo explain what do you mean with "legitimate" address?? I have too problrm with share folders on domain wp.pl.
And i recive this same massages:
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. This is a permanent error. The following address(es) failed:

  <email address hidden>
    SMTP error from remote mail server after MAIL FROM:<email address hidden> SIZE=2476:
    host mx.wp.pl [212.77.101.4]: 550 BLAD SPF - zobacz strone / SPF Error:
    Please see http://spf.pobox.com/why.html?sender=marcars%40wp.pl&ip=91.189.90.139&receiver=smtp.wp.pl Jesli jestes uzytkownikiem poczta.wp.pl sprawdz poprawnosc autoryzacji SMTP / If you are a poczta.wp.pl user check SMTP configuration:
    http://poczta.wp.pl/autoryzacja/

------ This is a copy of the message, including all the headers. ------

Return-path: <email address hidden>
Received: from lardizabala.canonical.com ([91.189.89.53])
 by adelie.canonical.com with esmtp (Exim 4.71 #1 (Debian))
 id 1ROb77-0006ra-97
 for <email address hidden>; Thu, 10 Nov 2011 20:20:45 +0000
Received: from lardizabala.canonical.com (localhost [127.0.0.1])
 by lardizabala.canonical.com (Postfix) with ESMTP id 3182E20A2A1
 for <email address hidden>; Thu, 10 Nov 2011 20:20:45 +0000 (UTC)
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: quoted-printable
Subject: Mariusz Kraus shared Helion with you via Ubuntu One
From: <email address hidden>
To: <email address hidden>
Date: Thu, 10 Nov 2011 20:20:45 -0000
Message-ID: <email address hidden>

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
 Ubuntu One: https://one.ubuntu.com
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

How can i solved that problem??