Unable to send email while others can

Hi there, I am facing difficulties sending emails out. I am able to recieve emails as per normal though. When I try sending emails out I get the following error message. My colleagues are able to recieve my emails though, for e.g aisyah@domain.com.sg is able to recieve. Below is the error message recieved.


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:


foongkinwai@domain.com

host clayton.serverdpomain.net [67.228.xx.x]

SMTP error from remote mail server after RCPT TO::

550-Verification failed for 

550-Unrouteable address

550 Sender verify failed


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


Return-path: 

Received: from bb220-255-191-245.singnet.com.sg ([220.255.xxx.xxx]:49694 helo=domainLenovo)

by ap13.serverdomin.net with esmtpa (Exim 4.85)

(envelope-from )

id 1ZdxN8-0008MH-31

for foongkinwai@domain.com; Mon, 21 Sep 2015 05:26:54 -0400

From: "Kin Wai \(domain\)" 

To: 

Subject: test

Date: Mon, 21 Sep 2015 17:26:53 +0800

Message-ID: <00bd01d0f44f$a6eba840$f4c2f8c0$@domain.com.sg>

MIME-Version: 1.0

Content-Type: multipart/alternative;

boundary="----=_NextPart_000_00BE_01D0F492.B50EE840"

X-Mailer: Microsoft Outlook 15.0

Thread-Index: AdD0T6VPnZSwv9hYTq2QXVRBD6JvpQ==

Content-Language: en-sg


This is a multipart message in MIME format.


------=_NextPart_000_00BE_01D0F492.B50EE840

Content-Type: text/plain;

charset="us-ascii"

Content-Transfer-Encoding: 7bit


test



------=_NextPart_000_00BE_01D0F492.B50EE840

Content-Type: text/html;

charset="us-ascii"

Content-Transfer-Encoding: quoted-printable





test

------=_NextPart_000_00BE_01D0F492.B50EE840--

I forgot to add that while I'm unable to send emails out (kinwai@domain.com.sg), my colleague's (aisyah@domain.com.sg) is able to. What should I do?

cPanelMichael

September 21, 2015 13:37

Hello :) Do you encounter the error message when sending from "kinwai@domain.com.sg" to any remote address, or only when sending to a specific server? Have you verified this email address is created in cPanel, and the domain name and it's MX records resolve to the cPanel server? Thank you.

Kin Wai

September 22, 2015 02:06

Hi Michael, Thanks for assisting. I encounter the error message when sending to any remote address. This email address was created in cPanel. However, how do I ensure the domain name and it's MX records resolve to the cPanel server? Thank you

Renjith C R

September 22, 2015 09:41

Hi, Please run below command on your server, if you have root access and provide the output. exim -bt kinwai@domain.com.sg You can check MX records from shell by running, dig MX domain.com.sg

September 22, 2015 13:24

Hello :) You can also enter the domain name in a website such as IntoDNS.com to see the results if you are not comfortable using the command line. Thank you.

September 23, 2015 07:15

Thank you guys so much! I've run the domain names at IntoDNS.com and everything points back to my server. Everything looks in order, or it could be that I have no idea what I'm doing. Any other possibilities as to why my colleagues are able to send emails out whereas I can't? Any help is much appreciated!

September 23, 2015 14:59

Try searching your email address in /var/log/exim_mainlog to see if you can find additional information about the failure. EX:
exigrep user@domain /var/log/exim_mainlog
Thank you.

Unable to send email while others can

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