[CentOS-es] probemas de

[Alfredo Riguetti]

Hola , me esta pasando algo que me esta complicando mucho, tengo un 
server centos 5,5 andando sin problemas, tengo postfix dovecot y amavis, 
el tema que tengo es que no siempre pero me rechaza mails el amavis, por 
ejemplo mando sin problemas a todos los usuarios de mi red interna pero 
allá de vez en cuando me da este error mandando a un usuario de mi 
propio servidor. el rebote lo adjunto mas abajo, ademas de celulares con 
lineas de la compania claro me pasa mas que con otras pero me pasa. 
supongo es porque esas ip están sucias o en blacklist y por eso los 
rechaza pero este caso que copio es un mail absolutamente interno y 
miren el rebote y me esta enloqueciendo porque pasa seguido.

el asunto del rebote es : Considered UNSOLICITED BULK EMAIL, apparently 
from you

he googleado bastante y no encuentro una solución.

muchas gracias por vuestra ayuda

A message from<alfredo.riguetti en ptravel.com.uy>
to:nefer en ptravel.com.uy

was considered unsolicited bulk e-mail (UBE).

Our internal reference code for your message is 21293-07/aKr5tWs-sirz

The message carried your return address, so it was either a genuine mail
from you, or a sender address was faked and your e-mail address abused
by third party, in which case we apologize for undesired notification.

We do try to minimize backscatter for more prominent cases of UBE and
for infected mail, but for less obvious cases some balance between
losing genuine mail and sending undesired backscatter is sought,
and there can be some collateral damage on either side.

First upstream SMTP client IP address: [200.71.17.186] unknown
According to a 'Received:' trace, the message apparently originated at:
   [200.71.17.186], [10.0.0.27] unknown [200.71.17.186] using TLSv1 with cipher
   DHE-RSA-AES128-SHA (128/128 bits) No client certificate requested

Return-Path:<alfredo.riguetti en ptravel.com.uy>
From: Alfredo Riguetti<alfredo.riguetti en ptravel.com.uy>
Message-ID:<550C2260.20201 en ptravel.com.uy>
Subject: informe de entrega de mail

Delivery of the email was stopped!


dsn_status


Reporting-MTA: dns; srv-horde.ptravel.com.uy
Received-From-MTA: smtp; srv-horde.ptravel.com.uy ([127.0.0.1])
Arrival-Date: Fri, 20 Mar 2015 10:36:32 -0300 (UYT)

Original-Recipient:rfc822;nefer en ptravel.com.uy
Final-Recipient:rfc822;nefer en ptravel.com.uy
Action: failed
Status: 5.7.0
Diagnostic-Code: smtp; 554 5.7.0 Reject, id=21293-07 - SPAM
Last-Attempt-Date: Fri, 20 Mar 2015 10:36:32 -0300 (UYT)
Final-Log-ID: 21293-07/aKr5tWs-sirz


header


Return-Path:<alfredo.riguetti en ptravel.com.uy>
Received: from [10.0.0.27] (unknown [200.71.17.186])
	(using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits))
	(No client certificate requested)
	by srv-horde.ptravel.com.uy (Postfix) with ESMTP id D196B14872F
	for<nefer en ptravel.com.uy>; Fri, 20 Mar 2015 10:36:32 -0300 (UYT)
Message-ID:<550C2260.20201 en ptravel.com.uy>
Date: Fri, 20 Mar 2015 10:36:32 -0300
From: Alfredo Riguetti<alfredo.riguetti en ptravel.com.uy>
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.5.0
MIME-Version: 1.0
To: Leonardo Carbajal<nefer en ptravel.com.uy>
Subject: informe de entrega de mail
Content-Type: multipart/alternative;
  boundary="------------030903030203010905090604"