==== Required information ====
- iRedMail version: 0.8.3
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MySQL
- Linux/BSD distribution name and version:  CentOS 6.2.3
- Related log if you're reporting an issue: Mail marked spam in Hotmail
====

Hi, i install iRedMail, send a mail to Gmail and Great! But Hotmail mark as spam. This is de Code Message:

x-store-info:4r51+eLowCe79NzwdU2kRyU+pBy2R9QCd3wOV0ZjcyAdtedxK4Ud5R+JkwA2kUAUId6v8xdADj7y4CQx32mct3s6a8VCGcn89NMmMs/pFRap9ld7vorKcqKdv73gQ4hKkkXtvOVTwTA=
Authentication-Results: hotmail.com; spf=pass (sender IP is 200.41.110.94) smtp.mailfrom=postmaster@constituir-una-empresa.com; dkim=pass header.d=constituir-una-empresa.com; x-hmca=pass
X-SID-PRA: postmaster@constituir-una-empresa.com
X-AUTH-Result: PASS
X-SID-Result: PASS
X-Message-Status: n:n
X-Message-Delivery: Vj0xLjE7dXM9MDtsPTA7YT0wO0Q9MjtHRD0yO1NDTD02
X-Message-Info: 7FmAUICozuvrST+henR6oyrLrlPpvMmRRoN3V84DYyTGXNWmA1Poeo7OGVZC9THWhdWYy2/dZBWNBAFLnrs35VFsJKFQdpeS+QvI7QpBqEix7B74MAILPeH0qkz3wBDiUSQEs8wXBr6b//J9ygaPEX3iLmkFNrCr
Received: from mx.localhost ([200.41.110.94]) by COL0-MC2-F41.Col0.hotmail.com with Microsoft SMTPSVC(6.0.3790.4900);
     Fri, 15 Mar 2013 07:39:11 -0700
Received: from localhost (mx.localhost [127.0.0.1])
    by mx.localhost (Postfix) with ESMTP id D1AD22613F0
    for <the_duelist_1@hotmail.com>; Fri, 15 Mar 2013 09:40:50 -0500 (PET)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=
    constituir-una-empresa.com; h=user-agent:message-id:subject
    :subject:to:from:from:date:date:content-transfer-encoding
    :content-type:content-type:mime-version; s=dkim; t=1363358448;
     x=1364222448; bh=Ze3mgaQn9/9R7SnNV4B+vEDIXLjOYBscLFjSgZQXz+g=; b=
    ftYgT3FI3yh+o4e46gBuM8PqG0zNXzquPPARGSWGxDNKqHmWxs0XX1bbZCAickp+
    /tsIp82X38P/ObLXoneYZDUdMR0epDjsN72HuLcxZPoQkwpqHEIEzEhVkVyG0G5P
    ZpyCAVSk85jeUoUTCzLD+plb/ZG5tpCvALsoV/1GtHk=
X-Virus-Scanned: amavisd-new at mx.localhost
Received: from mx.localhost ([127.0.0.1])
    by localhost (mx.localhost [127.0.0.1]) (amavisd-new, port 10024)
    with ESMTP id 6GU8uuI1NbRw for <the_duelist_1@hotmail.com>;
    Fri, 15 Mar 2013 09:40:48 -0500 (PET)
Received: from constituir-una-empresa.com (mx.localhost [127.0.0.1])
    by mx.localhost (Postfix) with ESMTPA id D2CB02613C6
    for <the_duelist_1@hotmail.com>; Fri, 15 Mar 2013 09:40:48 -0500 (PET)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8;
format=flowed
Content-Transfer-Encoding: 7bit
Date: Fri, 15 Mar 2013 10:40:48 -0400
From: postmaster@constituir-una-empresa.com
To: <the_duelist_1@hotmail.com>
Subject: Prueba
Message-ID: <a44690f0eaa6f1008aeaa9464d2951f4@constituir-una-empresa.com>
X-Sender: postmaster@constituir-una-empresa.com
User-Agent: RoundCube WebMail
Return-Path: postmaster@constituir-una-empresa.com
X-OriginalArrivalTime: 15 Mar 2013 14:39:11.0686 (UTC) FILETIME=[DBC83E60:01CE218A]

Prueba

In CentOS in /etc/hosts file contains:

127.0.0.1  mx.localhost localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
200.41.110.94   constituir-una-empresa.com

- My domain is constituir-una-empresa.com provider GoDaddy.
- SPF and DKIM is OK. (apparently)
- Test DKIM pass:
# amavisd -c /etc/amavisd/amavisd.conf testkeys constituir-una-empresa.com
TESTING#1: dkim._domainkey.constituir-una-empresa.com => pass

SPF Record:
v=spf1 ip4:200.41.110.94 -all