since upgrade 5.4.1 Error Code=connection closed by peer

Vesse, Michel

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Oct 10, 2011, 10:43:13 AM10/10/11

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hi,
i dont now if it is since my upgrade to 5.4.1 but before
we have not this problem, i have some read failed. Error
Code=connection closed by peer
if you can help me ...
best regards
Michel
this is the log for exemple :
16:31:07.578 5 SMTP-000174(jvs.fr) processing
16:31:07.625 5 SMTP-000174(jvs.fr) 2 relay(s)
found:s18.altospam.com d42.altospam.com
16:31:07.625 4 SMTP-000174(jvs.fr) resolving
's18.altospam.com'
16:31:07.671 4 SMTP-000174(jvs.fr) connecting
[111.111.111.111]:0 -> [94.23.33.189]:25
16:31:07.781 5 SMTP-000174(jvs.fr) inp: 220
s18.altospam.com ESMTP
16:31:07.781 4 SMTP-000174(jvs.fr) connected to
s18.altospam.com [94.23.33.189]:25, ESMTP
16:31:07.781 5 SMTP-000174(jvs.fr) out: EHLO
centralpost.net\r\n
16:31:07.828 5 SMTP-000174(jvs.fr) inp: 250-Requested mail
action okay, completed
16:31:07.828 5 SMTP-000174(jvs.fr) inp: 250-SIZE 20971520
16:31:07.828 5 SMTP-000174(jvs.fr) inp: 250 HELP
16:31:07.828 4 SMTP-000174(jvs.fr) Connected. SIZE
16:31:07.828 4 SMTP-000174(jvs.fr) [211398] sending
16:31:07.828 5 SMTP-000174(jvs.fr) out: MAIL
FROM:<x...@dom.com> SIZE=5308\r\n
16:31:07.859 5 SMTP-000174(jvs.fr) inp: 250 "MAIL FROM
OK."
16:31:07.859 5 SMTP-000174(jvs.fr) out: RCPT
TO:<ltre...@jvs.fr>\r\n
16:31:07.906 5 SMTP-000174(jvs.fr) inp: 250 "RCPT TO OK."
16:31:07.906 5 SMTP-000174(jvs.fr) out: DATA\r\n
16:31:07.937 5 SMTP-000174(jvs.fr) inp: 354 Enter message,
ending with "." on a line by itself
16:31:07.937 5 SMTP-000174(jvs.fr) out:
X-CGP-ClamAV-Result: CLEAN\r\nX-VirusScanner: Niversoft's
CGPClamav Helper v1.16 (ClamAV engine v0.97)\r\nReceived:
from [90.80.216.21] (account x...@dom.com)\r\n by
centralpost.net (CommuniGate Pro XIMSS 5.4.1)\r\n with
XIMSS id 211398 for x...@jvs.fr; Mon, 10 Oct 2011 15:00:51
+0200\r\nX-Mailer: CommuniGate Pronto! 4.1\r\nSubject: Re:
=?utf-8?Q?R=C3=A9installation?=\r\n de
logiciel\r\nIn-Reply-To: <002101cc8746$35a92600$a0fb
16:31:07.937 5 SMTP-000174(jvs.fr) out:
ltre...@jvs.fr</a></div><div dir="ltr">\194\160Objet :
R\195\169installation de logiciel</div><br/><br/><br/><div
dir="ltr">\194\160Bonjour,</div><br/><br/><br/><div
dir="ltr">\194\160Notre collectivit\195\169 pr\195\169voit
l'ann\195\169e prochaine de changer\194\160</div><div
dir="ltr">l'ordinateur de notre service.
il\194\160</div><div dir="ltr">nous\195\169voir de
r\195\169installater,\194\160</div><d
16:31:07.953 3 SMTP-000174(jvs.fr) read failed. Error
Code=connection closed by peer
16:31:07.953 3 SMTP-000174(jvs.fr) [211398] releasing
batch
16:31:07.953 4 SMTP(@111.111.111.111|jvs.fr) re-enqueue
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Technical Support

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Oct 11, 2011, 2:18:06 AM10/11/11

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Hello,

On 2011-10-10 18:43, Vesse, Michel wrote:
> hi,
> i dont now if it is since my upgrade to 5.4.1 but before we have not
> this problem, i have some read failed. Error Code=connection closed by peer

"connection closed by peer" means that the remote side explicitly
dropped the connection. That may be a problem with the remote side
configuration or some side-effect from anti-virus scanners between CGpro
and that remote server.

--
Best regards,
Dmitry Akindinov

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When answering to letters sent to you by the tech.support staff, make
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Vesse, Michel

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Oct 11, 2011, 6:27:05 AM10/11/11

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Hi Dmitry,
thank you for your help,

Hello,
On 2011-10-10 18:43, Vesse, Michel wrote:

>"connection closed by peer" means that the remote side >explicitly dropped the connection. That may be a problem >with the remote side configuration

can you give me more details if possible and where can i
see on the console admin what you mean

>or some side-effect >from anti-virus scanners between >CGpro and that remote >server.

we use anti-virus CGPClamAV Version 1.16 ClamAV 0.97
engine
it is not the latest Version 1.16.2 ClamAV 0.97.2 engine

Is there a document or a link to view all the error codes
contained in the logs, what that mean and what to do to
properly configure the server ?
best regards
Michel

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CENTRALPOST http://mail.liberty-one.com/Pronto4/

Juergen P. [core]

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Oct 11, 2011, 7:02:36 AM10/11/11

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hi,

that depends on the client.
the antivirus on the client could drop the connection if it is kept open too
long -would be one of many possible reasons.
maybe to much concurent connections from the same client.
i used mcafee enterprise edition. if u use that, you must take an eye on the
security-settings an blocking rules for example.
you could check the timeouts set for the specific services used.
full logging would be an option.

i experienced those errors also coming from some workstations using mapi or
httpu. there is a setting for client reservation, etc.
check the channels :-)

kr

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Juergen

VOIP / SIP / IM: juer...@core.at
TEL: +43 676 30 592 44 / +43 1 236 46 60 101

Vesse, Michel

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Oct 11, 2011, 11:30:06 AM10/11/11

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thank you Juergen,

this is the message from the administrator of remote
server :
Of the last 8 hours, about 24% of SMTP sessions were
interrupted before the transfer of mail to our mail server

it is not for all the message but we have more problem
since this upgrade ..

Juergen P. [core]

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Oct 11, 2011, 12:24:48 PM10/11/11

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i would ceck quality of my uplink, the channel-settings on cgp,
firewalls/timeouts.

--

Juergen

VOIP / SIP / IM: juer...@core.at
TEL: +43 676 30 592 44 / +43 1 236 46 60 101

Robin Lewis

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Nov 24, 2011, 8:36:02 AM11/24/11

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Michel
I had similar symptoms as you,
ie after upgrade to 5.4.1 I was seeing alot of "Error Code=connection closed by peer"
This error is quite generic, eg mail client just disconnects/ gives up
But I though Id share my experience and hope its some interest to you and others.

Our problem was our CGP users could not connect our server to send mail when not on our LAN, even though this had been working fine before upgrade.
The problem was identified that CGP was not advertising SMTP authorisation to anyone other than "clients" ie those will LAN ip addresses.
Fix was Settings > Mail> Receiving> Advertise: AUTH to: (change to everybody from clients)
I dont think this is new setting so why it became such problem after upgrade Im not sure.
Fix was instant and simple

Robin

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Robin Lewis
IT and Communications Manager
ro...@primarytalent.com
0207 400 4500

Primary Talent International
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