this is the message source sent from thunderbird (I only replaced the email addresses whit "hiddeh@"); it reports "sender-id: fail" :
x-store-info:4r51+eLowCe79NzwdU2kRwMf1FfZT+JrstzdFG76XYG4p+n5Kt5O1NDgyG6DnTEYpkceVS/buEc7897HoAy+vRXUP3AKhDp74CpjOfLkPd8yylLK0VPldHYbwF0iZoD+s4UGAqqvWyg=
Authentication-Results: hotmail.com; sender-id=fail (sender IP is 151.1.108.65) header.from=hidden@mail.com; dkim=none header.d=mail.com; x-hmca=fail
X-SID-PRA:
hidden@mail.com
X-SID-Result: Fail
X-DKIM-Result: None
X-AUTH-Result: FAIL
X-Message-Status: n:n
X-Message-Delivery: Vj0xLjE7dXM9MDtsPTA7YT0wO0Q9MjtHRD0yO1NDTD00
X-Message-Info: q7bX5s87Og//UscsqJoXfqWRrjzd8fmc6+iJXdUrjlCguCbG/cy+3AzjpVLYdZP7/emaDEnxc3V2KRnvsABVoTFJuAFcD5v+VEAK91CTsdIGeBY8AX0q8bPZJ7oemwmK34VLwdlshLYNbrvMoGR2cg==
Received: from cp-out8.libero.it ([151.1.108.65]) by COL0-MC4-F24.Col0.hotmail.com with Microsoft SMTPSVC(6.0.3790.4900);
Fri, 14 Sep 2012 08:56:41 -0700
X-CTCH-Spam: Unknown
X-CTCH-RefID: str=0001.0A0B0205.505353B8.01BE,ss=1,re=0.000,fgs=0
X-libjamoibt: 1555
Received: from mail.libero.it (151.74.120.138) by cp-out8.libero.it (8.5.133)
id 504281E50205B317 for
hidden@outlook.com; Fri, 14 Sep 2012 17:56:40 +0200
Message-ID: <505353B1.6090208@mail.com>
Date: Fri, 14 Sep 2012 17:56:33 +0200
From: hidden <hidden@mail.com>
MIME-Version: 1.0
To:
hidden@outlook.com
Subject: test5
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 7bit
Return-Path:
hidden@mail.com
X-OriginalArrivalTime: 14 Sep 2012 15:56:41.0715 (UTC) FILETIME=[883BDC30:01CD9291]