Random spam mail stuck in queue

[Paul Welsh]

Not a big deal because I've written a script to track them down but,
after several months of no problems, my inbound mail queue got clogged
up with the message below.

It keeps getting scanned again and again.  Eats up loads of CPU.

Running Exim 4.60 with MailScanner 4.84.3

Below is the start of the message.  It's a tax refund spam with a
"refund form" attached.

Anyone else had this problem?

Regards

Paul


243P Received: from host2.lollo.info ([96.30.48.99])
	by [my server]
	(Exim 4.60)
	(envelope-from <hmrct at taxes.co.uk>)
	id 1RixlR-0003D4-NZ
	for [me]; Fri, 06 Jan 2012 00:34:34 +0000
203P Received: from ftp.trad.logos.it ([193.41.7.210] helo=taxes.co.uk)
	by host2.lollo.info with esmtpa (Exim 4.69)
	(envelope-from <hmrct at taxes.co.uk>)
	id 1RiwUT-0003rZ-6K; Thu, 05 Jan 2012 17:12:57 -0600
030R Reply-To: noreply at taxes.co.uk
049F From: "HM Revenue & Customs" <hmrct at taxes.co.uk>
032  Subject: Notification of refund
033  Date: 06 Jan 2012 00:12:54 +0100
058I Message-ID: <20120106001254.B0FF5166415E3CAD at taxes.co.uk>
018  MIME-Version: 1.0
085  Content-Type: multipart/mixed;