All messages from the mail server are marked as spam by default

So my mail server has a correct SPF record, a PTR and signs all messages with DKIM but still every message goes to spam in Gmail by default.

What can be done in this case?

GMail provides a message that tries to explain why the message end up in spam but it is quite vague: ” It contains content that’s typically used in spam messages” ( Linked page has something that proves my suspicions: “Messages sent from accounts or IP addresses that have sent other spam messages”. But again, have no clue how to get around this.

Here is an example header:

Received: from ([XXX.XXX.XXX.XXX]) 
by with ESMTPS id y59si1359634wey.46.2012. 
(version=TLSv1/SSLv3 cipher=OTHER); 
Tue, 02 Oct 2012 07:28:54 -0700 (PDT) 
Received-SPF: pass ( domain of designates XXX.XXX.XXX.XXX as permitted sender) client-ip=XXX.XXX.XXX.XXX; 
Authentication-Results:; spf=pass ( domain of designates XXX.XXX.XXX.XXX as permitted sender); dkim=pass 
DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;; s=default; 
h=Content-Transfer-Encoding:Content-Type:MIME-Version:To:From:Subjectate:Message-ID; bh=LFhHIhWWdKms4f3jo157plOkAJzpbSt1ILThu4epfsI=; 
Received: from localhost.localdomain ([]:54505 
by with esmtpa (Exim 4.80)


If gmail doesn’t like your messages your issue is with Google. You need to talk to them.
Refusing to provide us troubleshooting details just ensures that we can’t help you.

If you are a bulk sender, this link is for you.
If you’re not a bulk sender you want this link
(If that second link doesn’t work it’s the part of the first link that says “Not a bulk sender? Just sending mail to a friend or business associate? Click here for further help.“)

Source : Link , Question Author : Serg , Answer Author : voretaq7

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