Hello there. I have a VPS server(linux debian). I installed a mail server on it and I used it to send email. But Gmail and Yahoo mail transfer my email to spam folder.
I checked a lot of spam black lists(RBLs), but I didn't find my IP address there. I also added spf record to my dns, but nothing changed.
This is one of my emails(Original) that spammed in gmail:

                                                                                                                                
Delivered-To: badihi.2006@gmail.com
Received: by 10.224.53.205 with SMTP id n13cs15016qag;
    Fri, 29 Jul 2011 02:52:57 -0700 (PDT)
Received: by 10.204.145.144 with SMTP id d16mr325523bkv.43.1311933176963;
    Fri, 29 Jul 2011 02:52:56 -0700 (PDT)
Return-Path: <forouz@khanemashroote.ir>
Received: from roghani.roghani (static.109.196.4.46.clients.your-server.de [46.4.196.109])
    by mx.google.com with ESMTP id k9si1899988faa.103.2011.07.29.02.52.55;
    Fri, 29 Jul 2011 02:52:55 -0700 (PDT)
Received-SPF: pass (google.com: domain of forouz@khanemashroote.ir designates 46.4.196.109 as permitted sender) client-ip=46.4.196.109;
Authentication-Results: mx.google.com; spf=pass (google.com: domain of forouz@khanemashroote.ir designates 46.4.196.109 as permitted sender) smtp.mail=forouz@khanemashroote.ir
Received: from khanemashroote.ir (localhost [127.0.0.1])
by roghani.roghani (Postfix) with ESMTP id B68FAB950A
for <badihi.2006@gmail.com>; Fri, 29 Jul 2011 04:55:19 -0500 (CDT)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8;
 format=flowed
Content-Transfer-Encoding: 7bit
Date: Fri, 29 Jul 2011 14:25:19 +0430
From: forouz <forouz@khanemashroote.ir>
To: <badihi.2006@gmail.com>
Subject: hello there
Message-ID: <6e3a8fedc3899827b769c616a0cc7e5d@khanemashroote.ir>
X-Sender: forouz@khanemashroote.ir
User-Agent: Roundcube Webmail/0.5.3

Hello, Mr. badihi please call me.
Thanks.

Now, I don't know what I have to do.
Can someone help me?
Thanks!