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Non-deliverable e-mail spam (resolved)

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Non-deliverable e-mail spam (resolved)

This morning I have received 7 non-deliverable e-mails which are obviously spam although not marked as such.
On checking the headers, the envelope is addressed to anything(random names)@mydomain.co.uk.
I have catch all switched off. Have telephoned CS this morning and they have received several reports of the same thing. All the headers have been copied into a Word document and sent in to Force9.
Please could this be checked out? It is reminiscent of the last breach - hope not!
1 REPLY
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Re: Non-deliverable e-mail spam

Here are the headers for one of them:
Return-path: <>
Envelope-to: lisejlev_1991@xxxxxx.co.uk
Delivery-date: Fri, 10 Apr 2009 06:03:33 +0100
Received: from [212.159.7.38] (helo=mx.ptn-ipin03.plus.net)
  by pih-sunmxcore10.plus.net with esmtp (PlusNet MXCore v2.00) id 1Ls8tp-0001SV-3C
  for lisejlev_1991@xxxxx.co.uk; Fri, 10 Apr 2009 06:03:33 +0100
Authentication-Results: mx.ptn-ipin03.plus.net; dkim=neutral (message not signed) header.i=none
Received-SPF: None identity=pra; client-ip=209.249.124.16;
  receiver=mx.ptn-ipin03.plus.net;
  envelope-from="";
  x-sender="MAILER-DAEMON@look.net";
  x-conformance=sidf_compatible
Received-SPF: Pass identity=mailfrom; client-ip=209.249.124.16;
  receiver=mx.ptn-ipin03.plus.net;
  envelope-from="";
  x-sender="postmaster@look.net";
  x-conformance=sidf_compatible
Received-SPF: Pass identity=helo; client-ip=209.249.124.16;
  receiver=mx.ptn-ipin03.plus.net;
  envelope-from="";
  x-sender="postmaster@look.net";
  x-conformance=sidf_compatible
X-SBRS: 2.2
X-IronPort-Anti-Spam-Filtered: true
X-IronPort-Anti-Spam-Result: Au8DAB9w3knR+XwQemdsb2JhbACNQQGHd3cBAQsLCAkOrFuIOIQB
X-IronPort-AV: E=McAfee;i="5300,2777,5579"; a="62335925"
X-IronPort-AV: E=Sophos;i="4.40,164,1238972400";
  d="scan'208";a="62335925"
Received: from po.look.net (HELO look.net) ([209.249.124.16])
  by mx.ptn-ipin03.plus.net with ESMTP; 10 Apr 2009 06:03:32 +0100
X-Virus-Scanned: by cgpav/clamav/ZillaFilter
From: MAILER-DAEMON@look.net
To: <lisejlev_1991@xxxxxx.co.uk>
Date: Fri, 10 Apr 2009 00:50:51 -0400
Message-ID: <receipt-48700150@look.net>
MIME-Version: 1.0
Content-Type: multipart/report; report-type="delivery-status"; boundary="_===48700150====look.net===_"
X-PN-Virus-Filtered: by PlusNet MXCore (v5.00)
X-PN-Spam-Filtered: by PlusNet MXCore (v5.00)
Subject: Undeliverable mail: Ask mother to call me
Now resolved - mailbox has been fixed.