Re: [fetchmail-devel] Re: [fetchmail-users] Incorrect header line and lost mails

[Frederic M. <fre...@wo...>]

Rob MacGregor wrote:
> On 2/14/06, Matthias Andree <mat...@gm...> wrote:
>   
> Personally, I'm curious to know what mail client is producing such
> borken emails, and what MTAs are passing them on.
>   
Here it is. I just got one from fetchmail-devel:

Received: from spooler by webmobile.be (Mercury/32 v4.01a); 14 Feb 2006 
14:47:07 +0100
X-Envelope-To: <fre...@wo...>
Return-path: <fet...@li...>
Received: from bat.berlios.de (195.37.77.135) by webmobile.be 
(Mercury/32 v4.01a) with ESMTP ID MG001FEF;
   14 Feb 2006 14:47:03 +0100
Received: from bat.berlios.de (localhost [127.0.0.1])
    by bat.berlios.de (8.11.3/8.11.3/SuSE Linux 8.11.1-0.5) with ESMTP 
id k1EDm2E08521;
    Tue, 14 Feb 2006 14:48:02 +0100
Received: from outmx024.isp.belgacom.be (outmx024.isp.belgacom.be 
[195.238.4.128])
    by bat.berlios.de (8.11.3/8.11.3/SuSE Linux 8.11.1-0.5) with ESMTP 
id k1EDlLE08506
    for <fet...@be...>; Tue, 14 Feb 2006 14:47:21 +0100
Received: from outmx024.isp.belgacom.be (localhost [127.0.0.1])
        by outmx024.isp.belgacom.be (8.12.11/8.12.11/Skynet-OUT-2.22) 
with ESMTP id k1EDlDjl009366
        for <fet...@be...>; Tue, 14 Feb 2006 14:47:13 +0100
        (envelope-from <fre...@wo...>)
Received: from [192.168.100.30] (167.191-201-80.adsl.skynet.be 
[80.201.191.167])
        by outmx024.isp.belgacom.be (8.12.11/8.12.11/Skynet-OUT-2.22) 
with ESMTP id k1EDl5Rq009276
        for <fet...@be...>; Tue, 14 Feb 2006 14:47:05 +0100
        (envelope-from <fre...@wo...>)
Message-ID: <43F...@wo...>
From: Frederic Marchal <fre...@wo...>
User-Agent: Thunderbird 1.5 (Windows/20051201)
MIME-Version: 1.0
To: fet...@be...
Subject: Re: [fetchmail-devel] Re: [fetchmail-users] Incorrect header line
 and lost mails
References: <43F...@wo...>    
 <43e...@ma...>    
 <m3h...@me...>    
 <43F...@wo...>    
 <m3o...@me...> <43ea8d070602140508w6af9d34aq5c
222...@ma...>
In-Reply-To: <43e...@ma...>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Sender: fet...@be...
Errors-To: fet...@be...
X-BeenThere: fet...@li...
X-Mailman-Version: 2.0.13
Precedence: bulk
List-Help: <mailto:fet...@li...?subject=help>
List-Post: <mailto:fet...@li...>
List-Subscribe: <http://lists.berlios.de/mailman/listinfo/fetchmail-devel>,
    <mailto:fet...@li...?subject=subscribe>
List-Id: <fetchmail-devel.lists.berlios.de>
List-Unsubscribe: 
<http://lists.berlios.de/mailman/listinfo/fetchmail-devel>,
    <mailto:fet...@li...?subject=unsubscribe>
List-Archive: <http://lists.berlios.de/pipermail/fetchmail-devel/>
Date: Tue, 14 Feb 2006 14:47:14 +0100
X-CC-Diagnostic: Body has "colon" (20)


I expect this mail will be wrapped so here is the explanation. The 
References header is one long line and is wrapped at some point after 
the <43ea8d070602140508w6af9d34aq5c which leaves the 
222...@ma...> all by itself on a line. You have 
received that e-mail and can compare it to your copy

On my side, the References line is truncated at column 263. rfc821 
specifies a maximum line length of 1000 characters but an implementation 
should be prepared for longer lines or reject the mail. It is not what 
is happening here.

The culprit may be Mercury/32 or the Wingate proxy which is not listed 
in the header. Anyway, I can't change any of them and nothing prevent 
the mail from being delivered. Moreover I can read it in thunderbird 
without any warning or inconvenience.

Frederic