これがスパムとしてマークされ、壁にぶつかっている理由をトラブルシューティングしようとしています。websitedomain.com の spf レコードを適切に設定していますが、hostingdomain.com がこれを無効にしているかどうかはわかりません。
これは、 http://contactform7.com/docs/を使用して、wordpress サイトの連絡先フォームから来ています。
Delivered-To: info@websitedomain.com
Received: by 10.205.23.130 with SMTP id ra2csp53286bkb;
Fri, 20 Sep 2013 17:56:02 -0700 (PDT)
X-Received: by 10.50.136.200 with SMTP id qc8mr4436670igb.52.1379724961891;
Fri, 20 Sep 2013 17:56:01 -0700 (PDT)
Return-Path: <serveruser@host4.hostdomain.com>
Received: from host4.hostdomain.com (host4.hostdomain.com. [72.52.210.36])
by mx.google.com with ESMTPS id 4si9708324ica.123.1969.12.31.16.00.00
(version=TLSv1 cipher=RC4-SHA bits=128/128);
Fri, 20 Sep 2013 17:56:01 -0700 (PDT)
Received-SPF: pass (google.com: best guess record for domain of serveruser@host4.hostdomain.com designates 72.52.210.36 as permitted sender) client-ip=72.52.210.36;
Authentication-Results: mx.google.com;
spf=pass (google.com: best guess record for domain of serveruser@host4.hostdomain.com designates 72.52.210.36 as permitted sender) smtp.mail=serveruser@host4.hostdomain.com
Received: from serveruser by host4.hostdomain.com with local (Exim 4.80.1)
(envelope-from <serveruser@host4.hostdomain.com>)
id 1VNBUP-0000p6-2a
for info@websitedomain.com; Fri, 20 Sep 2013 20:56:01 -0400
To: info@websitedomain.com
Subject: Website contact from Customer
Date: Sat, 21 Sep 2013 00:56:01 +0000
From: Customer <contact.form@websitedomain.com>
Message-ID: <78b6f35cdbec1e8760030b90bc791c9d@www.websitedomain.com>
X-Priority: 3
X-Mailer: PHPMailer 5.2.4 (http://code.google.com/a/apache-extras.org/p/phpmailer/)
Reply-To: Customer <valid@email.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Content-Type: text/plain; charset=UTF-8
X-AntiAbuse: This header was added to track abuse, please include it with any abuse report
X-AntiAbuse: Primary Hostname - host4.hostdomain.com
X-AntiAbuse: Original Domain - websitedomain.com
X-AntiAbuse: Originator/Caller UID/GID - [505 505] / [47 12]
X-AntiAbuse: Sender Address Domain - host4.hostdomain.com
X-Get-Message-Sender-Via: host4.hostdomain.com: authenticated_id: serveruser/from_h