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<toptraininges@hotmail.com>: host mx1.hotmail.com[65.54.188.94] said: 550
    SC-001 (BAY004-MC2F37) Unfortunately, messages from 217.160.129.251 weren't
    sent. Please contact your Internet service provider since part of their
    network is on our block list. You can also refer your provider to
    http://mail.live.com/mail/troubleshooting.aspx#errors. (in reply to MAIL
    FROM command)

<pruebas1and1@hotmail.es>: host mx4.hotmail.com[65.55.37.120] said: 550 SC-001
    (COL004-MC4F46) Unfortunately, messages from 217.160.129.251 weren't sent.
    Please contact your Internet service provider since part of their network
    is on our block list. You can also refer your provider to
    http://mail.live.com/mail/troubleshooting.aspx#errors. (in reply to MAIL
    FROM command)
Reporting-MTA: dns; s18132583.onlinehome-server.info
X-Postfix-Queue-ID: 50960196DA2B2
X-Postfix-Sender: rfc822; luisma@top-training.es
Arrival-Date: Fri, 18 Sep 2015 12:07:10 -0500 (CDT)

Final-Recipient: rfc822; toptraininges@hotmail.com
Original-Recipient: rfc822;toptraininges@hotmail.com
Action: failed
Status: 5.0.0
Remote-MTA: dns; mx1.hotmail.com
Diagnostic-Code: smtp; 550 SC-001 (BAY004-MC2F37) Unfortunately, messages from
    217.160.129.251 weren't sent. Please contact your Internet service provider
    since part of their network is on our block list. You can also refer your
    provider to http://mail.live.com/mail/troubleshooting.aspx#errors.

Final-Recipient: rfc822; pruebas1and1@hotmail.es
Original-Recipient: rfc822;pruebas1and1@hotmail.es
Action: failed
Status: 5.0.0
Remote-MTA: dns; mx4.hotmail.com
Diagnostic-Code: smtp; 550 SC-001 (COL004-MC4F46) Unfortunately, messages from
    217.160.129.251 weren't sent. Please contact your Internet service provider
    since part of their network is on our block list. You can also refer your
    provider to http://mail.live.com/mail/troubleshooting.aspx#errors.
Asunto	reunión
De	Luisma Benítez
Destinatario	pruebas1and1@hotmail.es
Fecha	Hoy 19:07
Return-Path: <luisma@top-training.es>
Received: from webmail.top-training.es (localhost [IPv6:::1])
    by s18132583.onlinehome-server.info (Postfix) with ESMTPA id 50960196DA2B2;
    Fri, 18 Sep 2015 12:07:10 -0500 (CDT)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8;
 format=flowed
Content-Transfer-Encoding: 8bit
Date: Fri, 18 Sep 2015 19:07:10 +0200
From: =?UTF-8?Q?Luisma_Ben=C3=ADtez?= <luisma@top-training.es>
To: pruebas1and1@hotmail.es
Subject: =?UTF-8?Q?reuni=C3=B3n?=
Organization: TOP TRAINING
Message-ID: <fefe6e4962ef3d595e0e166e4ee46da7@top-training.es>
X-Sender: luisma@top-training.es
User-Agent: Roundcube Webmail/1.1.2

prueba