How to hide/exclude SPF(sender info) from email, just want to be look "clean"

What plugins do you use?

Contact Form 7

OK. What other plugins do you use? Also, where can I see the site?

Contact Form 7
Contact Form DB
iThemes Security
MailPoet Newsletters
WordPress SEO
(others is light plugin such WP-Piwik,Contextual Related Posts)

my web : moviefull-hd.com

is the problem is not normal ?

this the E-mail :

From: test
Sent: ?8/?14/?2014 12:04 PM
To: *******
Subject: *******

Message Body:
*******

—
This e-mail was sent from a contact form on Movie Full HD (https://moviefull-hd.com)

Received-SPF: Neutral ***** is neither permitted nor denied by domain of ******* using best guess ) client-ip: ********
Delivered-To: ********
Return-Path: ********
Received: from *********
with SMTPS id ******** Wed, 13 Aug 2014 22:04:20 -0700 (PDT)
Received: from ******** with esmtp ******
(envelope-from ********)
************
for **********
Received: from *********
To: ********
Subject: *******
*********
X-Priority: 3
X-Mailer: PHPMailer 5.2.7 (https://github.com/PHPMailer/PHPMailer/)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
X-ZohoMail: ******
X-ZohoMail-Owner: **********
X-ZohoMail-Sender: ******
X-Zoho-Virus-Status: 2

I think it’s Zoho’s issue. I suggest contacting Zoho support.

okay then , thanks mate