Mail relay?

Ok here is the issue, We have a client that we host their web site and handle the DNS, they have an exchange server setup with another company, and the MX records of course are handled by our DNS servers. When email is sent to or from their exchange server it relays through our hosting server which causes 100's of "Mail delivery failed" messages to fill up the queue. Some even manage to get delivered then we get mail relay alerts from CSF and LFD. Here is a copy of the mail header and email

1Xt08X-000UH6-0r-H
mailnull 47 12
<>
1416860489 0
-ident mailnull
-received_protocol local
-body_linecount 94
-max_received_linelength 134
-allow_unqualified_recipient
-allow_unqualified_sender
-frozen 1416860489
-localerror
XX
1
username@yahoo.com

155P Received: from mailnull by srv02.net with local (Exim 4.84)
id 1Xt08X-000UH6-0r
for username@yahoo.com; Mon, 24 Nov 2014 14:21:29 -0600
043 X-Failed-Recipients: username@domain.com.hk
029 Auto-Submitted: auto-replied
064F From: Mail Delivery System 
029T To: username@yahoo.com
059 Subject: Mail delivery failed: returning message to sender
053I Message-Id: 
038 Date: Mon, 24 Nov 2014 14:21:29 -0600

Data spool file

1Xt08X-000UH6-0r-D
This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:

username@domain.com.hk
SMTP error from remote mail server after end of data:
host smartmx.domain2.com [176.9.xxx.xxx]: 554 5.7.1 Mail appears to be unsolicited -- send error reports to postmaster@domain2.com

------ This is a copy of the message, including all the headers. ------

Return-path: 
Received: from [194.44.xx.xxx] (port=54060 helo=theirdomain.org)
by srv02..net with esmtpa (Exim 4.84)
(envelope-from )
id 1Xt06u-000Txl-Ii
for username@domain.com.hk; Mon, 24 Nov 2014 14:19:48 -0600
Message-ID: 
From: "user Name" 
To: "User Name" 
Subject: =?ISO-8859-1?Q?FW=3Avdiana?=
Date: Sun, 24 Nov 2014 09:19:47 +0000
MIME-Version: 1.0
Content-Type: multipart/alternative;
boundary="----=_NextPart_000_5184_478D586B.23B9A1D5"
X-Priority: 3
X-MSMail-Priority: Normal
Importance: Normal
X-Mailer: Microsoft Windows Live Mail 16.4.3522.110
X-MIMEOLE: Produced By Microsoft MimeOLE V16.4.3522.110
X--MailScanner-Information: Please contact the ISP for more information
X--MailScanner-ID: 1Xt06u-000Txl-Ii
X--MailScanner: Not scanned: please contact your Internet E-Mail Service Provider for details
X--MailScanner-SpamCheck:
X--MailScanner-From: username@yahoo.com
X-Spam-Status: No

This is a multi-part message in MIME format.

------=_NextPart_000_5184_478D586B.23B9A1D5
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable

http : // www.domain .com/zctfhkvr/hpzvrhzuuamewqoqzkwzuxlqxu.saaypweugojsc=
dtlxnkqkttghefhnznkyxpu

Ok I have tried everything I can to stop this on our server through Exim but nothing stops the emails can anyone shed some lite on this?

24x7server

November 25, 2014 11:54

Hello, Have you correctly setup " Remote Mail Exchanger " for that domain ? Please check it at WHM > DNS Functions > Edit DNS Zone area, select the domain and setup it correctly

cPanelMichael

November 25, 2014 13:21

Hello :) Yes, please ensure you select "Remote Mail Exchanger" if you don't want the email handled on the cPanel server. You can find this under "Email Routing" in the zone when using the "Edit DNS Zone" option in WHM. Thank you.

Mail relay?

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