here are the headers of the blocked messages (actual domain replaced with domain.
com, ip address with n.n.n.n and gmail account name with person.account):
Delivered-To: person.name@gmail.
com
Received: by 10.216.89.137 with SMTP id c9cs247685wef;
Tue, 6 Dec 2011 16:06:37 -0800 (PST)
Received: by 10.224.199.134 with SMTP id es6mr14447757qab.2.1323216395590;
Tue, 06 Dec 2011 16:06:35 -0800 (PST)
Return-Path: <
[email protected]>
Received: from mail.domain.
com (domain.
com. [n.n.n.n])
by mx.google.
com with ESMTP id b16si7471407qcv.131.2011.12.06.16.06.35;
Tue, 06 Dec 2011 16:06:35 -0800 (PST)
Received-SPF: pass (google.com: domain of notifications@domain.
com designates n.n.n.n as permitted sender) client-ip=n.n.n.n;
Authentication-Results: mx.google.com; spf=pass (google.com: domain of notifications@domain.
com designates n.n.n.n as permitted sender) smtp.mail=notifications@domain.
com
Received: by mail.domain.
com (Postfix, from userid 5001)
id 26ADE381E3; Tue, 6 Dec 2011 19:06:35 -0500 (EST)
Received: from domain.
com (domain.
com [127.0.0.1])
by mail.domain.
com (Postfix) with ESMTP id 0148638030
for <
[email protected]>; Tue, 6 Dec 2011 19:06:31 -0500 (EST)
Date: Tue, 06 Dec 2011 19:06:31 -0500
From: DomainApp <
[email protected]>
Reply-To: notifications@domain.
com
To: person.name@gmail.
com
Message-ID: <
[email protected]>
Subject: Roman Snitko says hi
Mime-Version: 1.0
Content-Type: text/plain;
charset=UTF-8
Content-Transfer-Encoding: 7bit
X-No-Spam: True
Precedence: bulk
List-Unsubscribe: notifications@domain.
com
Messages go to Spam folder on various gmail accounts, so it's not a coincidence.
I followed all gmail guides on sending bulk emails from here https://mail.google.com/support/bin/answer.py?hl=en&answer=81126.
I also checked my ip-address here http://www.dnsblcheck.co.uk/ and it's NOT on the blacklists.
Thus I have two questions:
What may be the possible reason for the messages to go to Spam folder?
Is there any way to contact Google and ask them what causes this?
Update: I have set up openDKIM on my server, everything works, gmail message headers say that dkim=pass, which means everything is set up correctly. Messages still end up in Spam folder.