LocalHostRelay errors is there something wrong with my config or is this normal?

I keep getting LOCALHOSTRELAY errors sent from my VPS when I send out a group of emails through a Joomla component called AcyMailing. The thing that I don't understand is that I have the system set up to use SMTP sending with SSL authentication and I thought I had the system locked down to not allow open relay at all. If I have the system send a single test message I don't get any errors. But when the cron runs to send out a batch of emails they go out but I get an error email back from the server as well. Here is an example of the top of one of the messages:

----------
Time: Tue Sep 23 18:22:28 2014 -0700
Type: LOCALHOSTRELAY, Remote IP - 198.71.94.xxx (US/United States/zzz.yyy.net)
Count: 101 emails relayed
Blocked: No

Sample of the first 10 emails:
----------

Anyone have an idea of what might be going on here and how I can either fix the error in the mailing system or if there is nothing to be concerned with to stop the system from sending me the warnings?

 

It appears that the messages are indeed going out, but I have also been informed that even though my spam score is almost perfect on each email many of them are still getting marked as spam when it gets to the receiving person. Because of this I was wondering if there was something else in my configuration that might be sending up red flags making email systems (mostly gmail users) flag the messages as spam. I already have SPF and DKIM set up on the server and from what I can tell it is working properly.

Could this localrelay thing be a possible cause of that? I've checked the email blacklists and my server is not on any of them. Sorry, I know this has now moved outside of the cpanel issue but I am just trying to figure this one out...

My sincere thanks to all of you who have responded so far.

 

Here is a copy of the headers for a recent mailing. It doesn't get marked spam for me because I have trained gmail not to, but apparently for other association members it does get marked as spam:

Code:

                                                                                                                                                                                                                                                               
Delivered-To: me@gmail.com
Received: by 10.170.139.197 with SMTP id g188csp75431ykc;
        Sat, 20 Sep 2014 15:06:42 -0700 (PDT)
X-Received: by 10.66.157.73 with SMTP id wk9mr13083128pab.101.1411250802550;
        Sat, 20 Sep 2014 15:06:42 -0700 (PDT)
Return-Path: <newsletter@xxx.xxx>
Received: from vps.myhosting.net (vps.myhosting.net. [198.71.94.194])
        by mx.google.com with ESMTPS id hb4si9063446pac.178.2014.09.20.15.06.42
        for <chadcriswell@gmail.com>
        (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128);
        Sat, 20 Sep 2014 15:06:42 -0700 (PDT)
Received-SPF: pass (google.com: domain of newsletter@xxx.xxx designates 198.71.94.194 as permitted sender) client-ip=198.71.94.194;
Authentication-Results: mx.google.com;
       spf=pass (google.com: domain of newsletter@xxx.xxx designates 198.71.94.194 as permitted sender) smtp.mail=newsletter@xxx.xxx;
       dkim=pass header.i=@xxx.xxx
DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=xxx.xxx; s=default;
	h=Content-Transfer-Encoding:Content-Type:MIME-Version:Message-ID:Subject:Reply-To:From:To:Date; bh=ki48p1hrXNppgcNRMLc9dWTJ2HEjkuRY+u3mixlzvbA=;
	b=MLvfZzlbK4Wo13Rmj9yZ61zjRa4helxPyoawlwoiu/OLxROtOVLh+042HyMnD4ZOPXj74H3gR5b7UnVjlLS0ZAaIstFEQqhlx4p/4V+GnXVIWpABhCxr6ZSSEhDc8oaryA6e7+pHshG7gZZlWCHpc8viP/IUDj/98ZzpVelQ+ag=;
Received: from vps.straightarrowhosting.net ([198.71.94.194]:42593 helo=www.xxx.xxx)
	by vps.myhosting.net with esmtpsa (UNKNOWN:DHE-RSA-AES256-GCM-SHA384:256)
	(Exim 4.82)
	(envelope-from <newsletter@xxx.xxx>)
	id 1XVSj7-0000Gb-Fv
	for me@gmail.com; Sat, 20 Sep 2014 15:01:57 -0700
DKIM-Signature: v=1; a=rsa-sha1; q=dns/txt; l=4011; s=acy;
	t=1411250517; c=relaxed/simple; h=from:to:subject;
	d=xxx.xxx; bh=mgEa+/mL70JfuVdv0bOs6qM6mjM=;
	b=yf1ax5BGKmBUhK2E2fH6HefLA0nDsVdirj3jb9IxefBISzL723xd6LXLJ2FB
	OKe+Eu25IPRPfQqQrOkgd/jXzdSVmXjqbpGYpE2QaALxPCm9+s5B90okJ21m
	9K7yhRr8F3dFRbwAM/Pc5ST0AkB8fMxMZxC3zc5vBJFEr3BlqKg=
Date: Sun, 21 Sep 2014 02:01:57 +0400
To: Joe Smith <me@gmail.com>
From: xxxxx Association <newsletter@xxx.xxx>
Reply-To: xxxx President <president@xxx.xxx>
Subject: xxxx Online Conference Registration Now Open
Message-ID: <Mjk5OTI2MQAC526Y38BAMTQxMTI1MDUxNzE2OTMy@www.xxx.xxx>
X-Priority: 3
X-Mailer: PHPMailer 5.2.6 (https://github.com/PHPMailer/PHPMailer/)
MIME-Version: 1.0
Content-Type: multipart/alternative;
	boundary="b1_daefbbeb0757d6a548805646cff85321"
Content-Transfer-Encoding: 8bit
X-AntiAbuse: This header was added to track abuse, please include it with any abuse report
X-AntiAbuse: Primary Hostname - vps.myhosting.net
X-AntiAbuse: Original Domain - gmail.com
X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12]
X-AntiAbuse: Sender Address Domain - xxx.xxx
X-Get-Message-Sender-Via: vps.myhosting.net: authenticated_id: newsletter@xxx.xxx

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