git-send-email and msmtp

Hi,

I am using msmtp to send email using git-send-email. The problem i am facing now is vger.kernel.org is dropping the mails generated by git-send-email. When i am sending the same patch as an attachment in thunderbird everything works fine. So i guess it is not the patch content that is getting filtered. Any idea how to find out what is causing the patch to get dropped and how to fix this.

The header of the patch that was dropped is

Return-Path: <aneesh.kumar@gmail.com>
Received: from localhost ( [156.153.255.234])
        by mx.google.com with ESMTP id q13sm7841591qbq.2006.12.12.00.56.10;
        Tue, 12 Dec 2006 00:56:12 -0800 (PST)
From: "Aneesh Kumar K.V" <aneesh.kumar@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: trs80@ucc.gu.uwa.edu.au, Aneesh Kumar K.V <aneesh.kumar@gmail.com>
Subject: [PATCH] Alpha increase PERCPU_ENOUGH_ROOM
Date: Tue, 12 Dec 2006 14:26:06 +0530
Message-Id: <11659137661938-git-send-email-aneesh.kumar@gmail.com>
X-Mailer: git-send-email 1.4.4.2.gdb98-dirty

Header of the patch that went through fine is below

Return-Path: <aneesh.kumar@gmail.com>
Received: from ?217.236.218.183? ( [156.153.255.234])
        by mx.google.com with ESMTP id e18sm7940070qba.2006.12.12.01.29.53;
        Tue, 12 Dec 2006 01:29:55 -0800 (PST)
Message-ID: <457E768F.6050606@gmail.com>
Date: Tue, 12 Dec 2006 14:59:51 +0530
From: "Aneesh Kumar K.V" <aneesh.kumar@gmail.com>
User-Agent: Thunderbird 1.5.0.8 (X11/20061115)
MIME-Version: 1.0
To:  linux-kernel@vger.kernel.org
Subject: [PATCH] Alpha increase PERCPU_ENOUGH_ROOM
Content-Type: multipart/mixed;
 boundary="------------040307060102020004050000"

This is a multi-part message in MIME format.
--------------040307060102020004050000
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit

--------------040307060102020004050000
Content-Type: text/plain;
 name="0002-Alpha-increase-PERCPU_ENOUGH_ROOM.txt"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="0002-Alpha-increase-PERCPU_ENOUGH_ROOM.txt"

Aneesh Kumar wrote:

Probably problem with vger.kernel.org checking your server if it
is permitted to send mails. I use sendmail, and have solved this 
using my gmail mail account as SMTP tunnel/forwarding using
  define(`SMART_HOST',`[smtp.gmail.com]')
msmtp can do something like this. Ask chexum on IRC.