Mail is marked as spam by gmail – no idea, why [duplicate]

I’m using my DSL-Business-connection for a small office.
I just installed a Mac Mini Server with mail-support and try to send an email to googlemmil, but this mail is getting marked as spam.
This is the header of my mail.

The IP is static and I set up the PTR and SPF.

What else can I do?

Received: by with SMTP id 184csp174199oih;
        Fri, 31 Oct 2014 03:42:56 -0700 (PDT)
X-Received: by with SMTP id ea7mr25452495lbb.46.1414752175877;
        Fri, 31 Oct 2014 03:42:55 -0700 (PDT)
Return-Path: <>
Received: from ( [])
        by with ESMTPS id ri5si15978175lbb.115.2014.
        for <>
        (version=TLSv1 cipher=RC4-SHA bits=128/128);
        Fri, 31 Oct 2014 03:42:55 -0700 (PDT)
Received-SPF: pass ( domain of designates as permitted sender);
       spf=pass ( domain of designates as permitted sender)
Received: from localhost (localhost [])
    by (Postfix) with ESMTP id C17275486E9
    for <>; Fri, 31 Oct 2014 11:42:53 +0100 (CET)
X-Virus-Scanned: amavisd-new at
Received: from ([])
    by localhost ( []) (amavisd-new, port 10024)
    with ESMTP id GUEFHVd811Ma for <>;
    Fri, 31 Oct 2014 11:42:53 +0100 (CET)
Received: from [] (unknown [])
    by (Postfix) with ESMTPSA id 9DAF75486DB
    for <>; Fri, 31 Oct 2014 11:42:53 +0100 (CET)
From: =?utf-8?Q?Mein_Name9Fler?= <>
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
Subject: Eine Testemail
Message-Id: <>
Date: Fri, 31 Oct 2014 11:42:52 +0100
Mime-Version: 1.0 (Mac OS X Mail 8.0 \(1990.1\))
X-Mailer: Apple Mail (2.1990.1)


dies ist eine Testemail. Bitte vergesse den Termin am Sonntag nicht.

Danke Dir!`


You need to setup spf in you domain also setup dkim

I think google help pages can help you in this questions

Source : Link , Question Author : user3755325 , Answer Author : Алексей Ямщиков

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