retry timeout exceeded intermittenty

Hi all,

I have been running exim with chippy's mailscanner and the server standard spamassasin happily for months. However over the last three days I have started to loose some mail. Basically if I am sent 50 mails to my account I will lose one or two. In my mail stats it shows :-

2 myaccount@jorvik.XXXX.co.uk: retry timeout exceeded

1 mk@test.com: retry timeout exceeded

2 root@jorvik.XXXX.co.uk: retry timeout exceeded

Please see below for a copy of the bounced messages headers. Could this be related to spamassasin or mailscanner being slow to respond or is it more likely exim ? Anyone offer me any advice as where to look?
Thanks!

--- Enclosed is a copy of the bounce message I received.

Return-Path: <>
Received: (qmail 3169 invoked from network); 29 Dec 2004 21:04:40 -0000
Received: from jorvik.XXXX.co.uk (64.91.226.203)
by indium.smartgroups.com with SMTP; 29 Dec 2004 21:04:40 -0000
Received: from mailnull by jorvik.XXXX.co.uk with local (Exim 4.43)
id 1Cjkze-0000OA-6y
for tiger-chat-return-5568-steve=XXXX.org@smartgroups.com; Wed, 29 Dec 2004 21:04:30 +0000
X-Failed-Recipients: XXXX@jorvik.XXXX.co.uk
Auto-Submitted: auto-generated
From: Mail Delivery System <Mailer-Daemon@jorvik.XXXX.co.uk>
To: tiger-chat-return-5568-steve=XXXX.org@smartgroups.com
Subject: Mail delivery failed: returning message to sender
Message-Id: <E1Cjkze-0000OA-6y@jorvik.XXXX.co.uk>
Date: Wed, 29 Dec 2004 21:04:30 +0000
X-MailScanner-Information: Please contact the ISP for more information
X-MailScanner: Found to be clean
X-MailScanner-From:
X-AntiAbuse: This header was added to track abuse, please include it with any abuse report
X-AntiAbuse: Primary Hostname - jorvik.XXXX.co.uk
X-AntiAbuse: Original Domain - smartgroups.com
X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12]
X-AntiAbuse: Sender Address Domain -
X-Source:
X-Source-Args:
X-Source-Dir:

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:

XXXX@XXXX.XXXX.co.uk
All deliveries are handled by MailScanner

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

Return-path: <tiger-chat-return-5568-steve=XXXX.org@smartgroups.com>
Received: from XXXX by jorvik.XXXX.co.uk with local-bsmtp (Exim 4.43)
id 1CjkzR-0000O4-Ga
for XXXX@jorvik.XXXX.co.uk; Wed, 29 Dec 2004 21:04:28 +0000
Received: from [195.92.246.175] (helo=indium.smartgroups.com)
by jorvik.XXXX.co.uk with smtp (Exim 4.43)
id 1CjkzK-0000Nr-1j
for steve@XXXX.org; Wed, 29 Dec 2004 21:04:10 +0000
Received: (qmail 1917 invoked by uid 60001); 29 Dec 2004 21:03:48 -0000
Received: (qmail 1734 invoked from network); 29 Dec 2004 21:03:42 -0000
Received: from web12506.mail.yahoo.com (216.136.173.198)
by indium.smartgroups.com with SMTP; 29 Dec 2004 21:03:42 -0000
Received: (qmail 91135 invoked by uid 60001); 29 Dec 2004 21:03:38 -0000
Comment: DomainKeys? See http://antispam.yahoo.com/domainkeys
DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws;
s=s1024; d=yahoo.com;
b=tleyJAgR9pYnqHSJLAqtobPXPkcna4QugM+/taUqqPiER2dt2gFOXy+8MBdcxXG3RHUVDPowNlcc0UAYZ0PQpx5MGIaRj4YF8PheY6BaMjEq/RzMsclCck6jdHgFl5f40fpROSowwVScUNM4yaG+c8nkwP6ZiFy2EDr4vgVKBlc= ;
Message-ID: <20041229210338.91133.qmail@web12506.mail.yahoo.com>
Received: from [195.229.241.181] by web12506.mail.yahoo.com via HTTP; Wed, 29 Dec 2004 21:03:37 GMT
Date: Wed, 29 Dec 2004 21:03:37 +0000 (GMT)
From: Ian Walters <ian_walters_iss@gggg.com>
Subject: Re: [tiger-chat] kc records
To: tiger-chat@smartgroups.com
In-Reply-To: <20041229182409.93534.qmail@web12502.mail.yahoo.com>
MIME-Version: 1.0
Mailing-List: contact tiger-chat-help@smartgroups.com
Delivered-To: mailing list tiger-chat
Reply-To: tiger-chat@smartgroups.com
Precedence: bulk
X-No-Archive: yes
List-Post: <mailto:tiger-chat@smartgroups.com>
List-Help: <mailto:tiger-chat-help@smartgroups.com>
List-Unsubscribe: <mailto:tiger-chat-unsubscribe@smartgroups.com>
List-Subscribe: <mailto:tiger-chat-subscribe@smartgroups.com>
Content-Type: text/plain; charset=iso-8859-1
Content-Transfer-Encoding: 8bit
X-MailScanner-Information: Please contact the ISP for more information
X-MailScanner: Found to be clean
X-MailScanner-From: tiger-chat-return-5568-steve=XXXX.org@smartgroups.com
X-Spam-Checker-Version: SpamAssassin 3.0.2 (2004-11-16) on jorvik.XXXX.co.uk
X-Spam-Level:
X-Spam-Status: No, score=-100.1 required=5.0 tests=AWL,BAYES_00,
RCVD_IN_SORBS_WEB,UNWANTED_LANGUAGE_BODY,USER_IN_ALL_SPAM_TO
autolearn=ham version=3.0.2


Regards,
Steve

 

Shame nobody knows why

Steve