Header info - Why is this getting a SCL rating of 9?

Hey Experts.
Hope someone can help with this

I'm trying to work out WHY each newsletter sent via my clients webhosting company is getting an SCL rating of 9, and therefore not getting through Office 365 and going to Junk.  

Stats show very few emails are being read by reciepients.  The developer is playing dumb, so I want some ammo, facts on how he can improve his newsletter system.

Source server IP doesn't show up on any blacklists.
SPF is OK.

whitelisting IP addresses or domains on my Office 365 is not my answer,  I'm after reasons WHY SCL rating is so high if possible.

Following  is the header info for the message . Thanks for any tips!!.. Cheers Tom


Received: from SINPR02MB201.apcprd02.prod.outlook.com (10.141.112.11) by
SINPR02MB204.apcprd02.prod.outlook.com (10.141.112.26) with Microsoft SMTP
Server (TLS) id 15.1.118.21 via Mailbox Transport; Thu, 19 Mar 2015 22:36:52
+0000
Received: from TY1PR0201CA0006.apcprd02.prod.outlook.com (25.164.90.144) by
SINPR02MB201.apcprd02.prod.outlook.com (10.141.112.11) with Microsoft SMTP
Server (TLS) id 15.1.118.21; Thu, 19 Mar 2015 22:36:50 +0000
Received: from AM1FFO11FD043.protection.gbl (2a01:111:f400:7e00::139) by
TY1PR0201CA0006.outlook.office365.com (2a01:111:e400:5971::16) with Microsoft
SMTP Server (TLS) id 15.1.118.21 via Frontend Transport; Thu, 19 Mar 2015
22:36:48 +0000
Received: from mx193.a.outbound.createsend.com (203.55.21.193) by
AM1FFO11FD043.mail.protection.outlook.com (10.174.64.232) with Microsoft SMTP
Server id 15.1.125.13 via Frontend Transport; Thu, 19 Mar 2015 22:36:47 +0000
DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; s=cs2015; d=cmail20.com;
h=From:To:Reply-To:Date:Subject:MIME-Version:Content-Type:List-Unsubscribe:Sender:Message-ID; i=dixie=3Dclientdomainmasked.com@cmail20.com;
bh=Rm9OuJ0YhskMgPO9xwZa2zxo5pg=;
b=oMnDXgooZyFhVCqw5J9zOZ/uWBgk57VYDPgYzXR9yC+YMfTMOocxvgjMeajFVhkc1VvrhNvFad0o
W9W6m990Y8bMPd65DuThRlNeA5tJ9Nwc2B1dy1YQ6ptHg/JYv6He41xEcS3wgsB/sP85Ya2ManFk
tIXJgLXwq3eFFCzf1Qw=
From: "ClientName" <dixie@clientdomainmasked.com>
To: "bob@clientdomainmasked.com" <bob@clientdomainmasked.com>
Reply-To: dixie@clientdomainmasked.com
Date: Fri, 20 Mar 2015 09:36:46 +1100
Subject: Only 48 tickets left for the Property Management event of 2015 - Preview
MIME-Version: 1.0
Content-Type: multipart/alternative;
boundary="_41ee379d-a6a8-4a61-83b3-1b8c33b318cd_"; charset=utf-8
X-Mailer: Create Send
X-Complaints-To: abuse@cmail20.com
X-Feedback-ID: CA1-r-qddtko:LI1-r-l:CL1-r-ykef:createSEND
List-Unsubscribe: <http://unsub.cmail20.com/t/r-u-qddtko-l/>,
Sender: "ClientName" <dixie=clientdomainmasked.com@cmail20.com>
Message-ID: <cm.093646.qddtko.l.r@cmail20.com>
Return-Path: preview@cmail20.com
X-MS-Exchange-Organization-Network-Message-Id: 6ff30c99-c45f-4d94-642a-08d230ac51ac
X-EOPAttributedMessage: 0
X-MS-Exchange-Organization-MessageDirectionality: Incoming
Received-SPF: Pass (protection.outlook.com: domain of cmail20.com designates
203.55.21.193 as permitted sender) receiver=protection.outlook.com;
client-ip=203.55.21.193; helo=mx193.a.outbound.createsend.com;
Authentication-Results: spf=pass (sender IP is 203.55.21.193)
smtp.mailfrom=preview@cmail20.com; clientdomainmasked.com; dkim=pass (signature was
verified) header.d=cmail20.com;clientdomainmasked.com; dmarc=none action=none
header.from=clientdomainmasked.com;
X-Forefront-Antispam-Report: CIP:203.55.21.193;CTRY:AU;IPV:NLI;EFV:NLI;SRV:BULK;SFV:SPM;SFS:(6039001)(438002)(1900300002)(349012);DIR:INB;SFP:;SCL:9;SRVR:SINPR02MB201;H:mx193.a.outbound.createsend.com;FPR:;SPF:Pass;MLV:ovrnspm;MX:1;A:1;PTR:mx193.a.outbound.createsend.com;LANG:en;
X-DkimResult-Test: Passed
X-Microsoft-Antispam: UriScan:;BCL:4;PCL:0;RULEID:(240001)(3001015)(70001);SRVR:SINPR02MB201;
X-MS-Exchange-Organization-AVStamp-Service: 1.0
X-Exchange-Antispam-Report-Test: UriScan:;
X-Exchange-Antispam-Report-CFA-Test: BCL:4;PCL:0;RULEID:(601004)(5010005)(5011007);SRVR:SINPR02MB201;BCL:4;PCL:0;RULEID:;SRVR:SINPR02MB201;
X-MS-Exchange-Organization-SCL: 9
X-CustomSpam: Bulk Mail
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 19 Mar 2015 22:36:47.2769
(UTC)
X-MS-Exchange-CrossTenant-Id: ae61a177-666f-45bc-b65f-34ace0fc6ce2
X-MS-Exchange-CrossTenant-FromEntityHeader: Internet
X-MS-Exchange-Transport-CrossTenantHeadersStamped: SINPR02MB201
X-MS-Exchange-Organization-AuthSource: AM1FFO11FD043.protection.gbl
X-MS-Exchange-Organization-AuthAs: Anonymous
X-MS-Exchange-Transport-EndToEndLatency: 00:00:05.5987176
String :-)Windows EngineerAsked:
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Damien KayCommented:
Have you tried the "Message Analyzer" on the "https://testconnectivity.microsoft.com/" website?  Paste in the header and it gives a great evaluation of all the sections.

Not sure why the SCL is at 9, but here is an explanation of what the ratings mean:
     https://technet.microsoft.com/en-us/library/jj200686.aspx
I'm pretty sure the SCL is affected by the actual content too.  Have you tried sending an almost empty message, or a very bland test message?

SPF looks correct...

EOP is also rating this message as "Bulk Mail" with a Bulk Complaint Level (BCL) of "4" (0=best, 9=worst) See this link for an explanation of the BCL:
      https://technet.microsoft.com/en-us/library/dn759623%28v=exchg.150%29.aspx

Hopefully some of this may help point you in the right direction...

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Vasil Michev (MVP)Commented:
Most likely your anti-spam policy has the option to mark all bulk messages as spam. Hence the header:

X-CustomSpam: Bulk Mail

You can see from the X-Forefront-Antispam-Report header that the message was identified as Bulk message, and that it was subsequently marked as spam by the content filter.

https://technet.microsoft.com/en-us/library/dn205071(v=exchg.150).aspx
String :-)Windows EngineerAuthor Commented:
Hey Guys,
Thanks alot for taking the time to write and give your thoughts on this.  The links provided were very useful for my own learning and helped me understand the process and resolve problem.
Have a great Monday!!
Cheers
String
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