Re: [exim] synchronization error with exchange

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Autor: Toth-Abonyi Mihaly
Datum:  
To: exim-users
Betreff: Re: [exim] synchronization error with exchange
Hi Tony,

There was just a normal log before the error message.
I show you a different example sent to me the same way:
Eudora -> exchange -> exim

The first normal log:

2005-06-08 15:49:58 1Dg0wQ-0004Cw-4H <= xy@???
H=exsrv.xxx.u-szeged.hu [160.114.n.n] P=esmtp S=1403
id=6.1.2.0.0.20050608154026.01a17698@ex
srv.xxx.u-szeged.hu

The whole error message:

2005-06-08 15:49:58 SMTP protocol violation: synchronization error (next 
input s
ent too soon: pipelining was not advertised): rejected 
"--=====================_
18421046==.ALT" H=exsrv.xxx.u-szeged.hu [160.114.n.n] next 
input="Content-Ty
pe: text/html;\r\n      charset="iso-8859-1"\r\nContent-Transfer-Encoding: 
quote
d-printable\r\n\r\n<html>\r\n<body>\r\n<br>\r\nProba<br><br>\r\n<br>\r\n<x-sigse
p><"


The first part of the message arrives, but the whole message remains in
the queue of the exchange server,i.e. it multiplies itself many times.
Maybe some relevant parts from the arrived message belonging to the above
timestamp:

---beginning of insertion

Received: from exsrv.xxx.u-szeged.hu ([160.114.n.n])
         by zzz.cc.u-szeged.hu with esmtp (Exim 4.51)
         id 1Dg0wQ-0004Cw-4H
         for me@???; Wed, 08 Jun 2005 15:49:58 +0200
x-fsavag4mse-ts: 7d7a7ad43b65db3f
Keywords: disclaimer
Received: from xy.xxx.u-szeged.hu ([160.114.m.m]) by 
exsrv.xxx.u-szeged
.hu with Microsoft SMTPSVC(6.0.3790.1830); Wed, 8 Jun 2005 15:41:51 +0200
Content-Transfer-Encoding: 8bit
Message-ID: <6.1.2.0.0.20050608154026.01a17698@???>
X-Sender: xy@???
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.1830
X-Mailer: QUALCOMM Windows Eudora Version 6.1.2.0
Date: Wed, 08 Jun 2005 15:41:50 +0200
To: <me@???>
From: "X Y" <xy@???>
Subject: Test message with attachment
MIME-Version: 1.0
Content-Type: multipart/mixed;
         boundary="=====================_18421031==_"
X-OriginalArrivalTime: 08 Jun 2005 13:41:51.0892 (UTC) 
FILETIME=[D3949540:01C56C
2F]
Status: R
X-Status:
X-Keywords:


This is a multi-part message in MIME format.

--=====================_18421031==_
Content-Type: multipart/alternative;
         boundary="=====================_18421046==.ALT"



--=====================_18421046==.ALT
Content-Type: text/plain;
         format=flowed;
         charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable



Test message

---end of insertion

The first short text/plain MIME part arrives, but the second
(text/html - mentioned in the "next input" of the error
message) is missing. So it seems to me that the second
delimiter triggers the synchronization error, not the first
one is sent among the SMTP commands. Or am I wrong?

Regards,

Mihaly Toth-Abonyi
System administrator
University of Szeged
Hungary
------------------------------------------------------------------
On Wed, 8 Jun 2005, Tony Finch wrote:

> On Wed, 8 Jun 2005, Toth-Abonyi Mihaly wrote:
>>
>> 2005-06-08 15:27:48 SMTP protocol violation: synchronization error (next input s
>> ent too soon: pipelining was advertised): rejected "--=====================_2154
>> 5890==.ALT" H=exsrv....
>
> That looks like a MIME attachment delimiter (i.e. message data). I don't
> know why it is being sent when Exim is expecting an SMTP command. Were
> there any other lines in the log relating to the Exchange server before
> this error message?
>
>> The sender uses Eudora (Version 6.1.2.0) to contact the exchange
>> server, we did not notice similar problems with other mail clients
>> (outlook etc.).
>
> How odd!
>
> Tony.
> --
> <fanf@???> <dot@???> http://dotat.at/ ${sg{\N${sg{\
> N\}{([^N]*)(.)(.)(.*)}{\$1\$3\$2\$1\$3\n\$2\$3\$4\$3\n\$3\$2\$4}}\
> \N}{([^N]*)(.)(.)(.*)}{\$1\$3\$2\$1\$3\n\$2\$3\$4\$3\n\$3\$2\$4}}
>
> --
> ## List details at http://www.exim.org/mailman/listinfo/exim-users
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