frozen emails in whm mail queue manager from one domain

[xman888]

Hello,

I am wondering if anyone can shed some light on this for me.

I have a constant steam of emails appearing in my whm mail queue mananger from one domain on the server.

They appear to be bounce back emails, and they are 'frozen' in the mail queue

The domain has the following A records:

(CLIENT DOMAIN). MX 10 remote.(CLIENT DOMAIN).
(CLIENT DOMAIN). MX 15 (CLIENT DOMAIN).
remote. A (IP ADDRESS)

I am at a loss how to stop them.

Would anyone know how these are happening, or how to prevent?

I have copied and pasted a typical email below (I have put in (SERVER DOMAIN) and (CLIENT DOMAIN) to hide their identities)

They all have:

"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:

[email protected](CLIENT DOMAIN)"

with the above ( [email protected](CLIENT DOMAIN) ) not being a valid email address.

Is anyone have an idea what is happening here?

Thanks for any help.

Kind regards,
Anthony



The message header and email always appears to be:

Date:
Mon, 15 Jul 2013 02:45:58 -0400
From:
Mail Delivery System <[email protected](SERVER DOMAIN)>
To:
[email protected]
Subject:
Mail delivery failed: returning message to sender
Auto-Submitted:
auto-replied
Message-Id:
<[email protected](SERVER DOMAIN)>
Received:
from mailnull by (SERVER DOMAIN) with local (Exim 4.80.1)
id 1UycXm-000zWS-7i
for [email protected]; Mon, 15 Jul 2013 02:45:58 -0400
X-Failed-Recipients:
[email protected](CLIENT DOMAIN)

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:

[email protected](CLIENT DOMAIN)
SMTP error from remote mail server after RCPT TO:<[email protected](CLIENT DOMAIN)>:
host remote.(CLIENT DOMAIN) [(IP ADDRESS)]:
550 5.1.1 User unknown

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

Return-path: <[email protected]>
Received: from [36.69.xx.xx] (port=17612)
by (SERVER DOMAIN) with esmtp (Exim 4.80.1)
(envelope-from <[email protected]>)
id 1UycXX-000zTg-Eq
for [email protected](CLIENT DOMAIN); Mon, 15 Jul 2013 02:45:47 -0400
Date: Mon, 15 Jul 2013 13:45:28 +0700
From: "DrOz News" <[email protected]>
Reply-To: [email protected]
To: [email protected](CLIENT DOMAIN)
Message-ID: <[email protected]>
Subject: Discover the Secret to Losing Weight Fast!
MIME-Version: 1.0
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: 7bit
X-Mailer: WhatCounts

 

[quietFinn]

(CLIENT DOMAIN). MX 10 remote.(CLIENT DOMAIN).
(CLIENT DOMAIN). MX 15 (CLIENT DOMAIN).
remote. A (IP ADDRESS)

why do you have both remote and local MX records?

 

[cPanelMichael]

Hello

Is this domain name stored in the /etc/localdomains file or the /etc/remotedomains file? Are you pointing it's email to a remote mail server?

Thank you.

 

[xman888]

Hi guys,

Thank you for the replies - much appreciated.

I have answered them below:

1. why do you have both remote and local MX records?

--> I don't know why that is the case - it has always been like that (and I actually took the account over from a previous owner, so I haven't changed any of their settings).

It was previously like:

(CLIENT DOMAIN). MX 15 remote.(CLIENT DOMAIN).
(CLIENT DOMAIN). MX 10 (CLIENT DOMAIN).

however I recently switched the order around to see if that helped:

(CLIENT DOMAIN). MX 10 remote.(CLIENT DOMAIN).
(CLIENT DOMAIN). MX 15 (CLIENT DOMAIN).

2. Is this domain name stored in the /etc/localdomains file

--> No, it doesn't appear there.

3. or the /etc/remotedomains file?

--> Yes, it is there.

3. Are you pointing it's email to a remote mail server?

The mail record is a CNAME to (CLIENT DOMAIN).

The remote A record is pointing to a external IP address - I am assuming this is a remote mail server


I hope this helps guys - thanks for any insights you can provide.

Kind regards,
Anthony

 

[cPanelMichael]

You may want to try configuring the MX records to use either the local mail server, or the remote mail server. The error message you provided indicates the email account does not exist. This likely occurred because the mail was routed to the wrong mail server.

Thank you.