Web Hosting Talk : Web Hosting Main Forums : Hosting Security and Technology : Unroutable Address Error

[berdo9DS]

I am having a problem with a particular user, we will call domainname1.com for now. I can send an email to domainname1.com from mypersonaldomain.com without issue but if I try sending one from anotheruser.com to domainname1.com I get the following error:

carlo@domainname1.com
Unrouteable address

I have checked the mx record, /etc/localdomains, and every other config file on the server that domainname1.com is hosted on and there is no misconfiguration. Also, all three of the domains are on different servers but the servers are all in the same data center and it is also not just anotheruser.com that gets this error message, the customer is reporting that about 60% of emails sent to him have this error. Any help is welcomed.

thanks

[ngsupb]

As I understand you have access to the server anotheruser.com. Try to
check its mail server log file for addition information what
exactly was wrong.

It appears for me that something is wrong with its MX record, but
I can't do any checks unless I know the domain.

[berdo9DS]

I grep the exim_mailog when i try to send to domainname1.com for both domainname1.com and anotheruser.com and nothing is outputed. The MX record is right, but be my guest to dig it kanatasmokehouse.com

[Chris_M]

http://www.dnsreport.com/tools/dnsre...smokehouse.com


Looks like you have a reverse dns issue as well as other problems.

[Jedito]

can the anotheruser.com route to domainname1.com? is it anotheruser.com on the same server?

[ngsupb]

There is a problem with its MX record.

The current MX record is:

"74.52.4.42.kanatasmokehouse.com"

This host doesn't exist.

Looks like you tried to set up the MX record to "74.52.4.42" and
the domain name was added automatically.

Also MX record must be a host.

So, just set up "kanatasmokehouse.com." with the dot at
the end as the mx record for the domain.

So emails will be routed to the server "kanatasmokehouse.com".
I suppose it is the correct server where you want to deliver emails.

Hope this helps.

[berdo9DS]

Actually, I added the IP to the MX record out of desperation. I have changed it back to the domain name and you can dig or do a dnsreport and see that it is fine. However, I am still getting the same error. I have pasted the full header at the bottom of the tickt.

For Jedito, I can ping kanatasmokehouse.com (domainname1.com) from marketing.ca (anotheruser.com) and I can also complete a tracert. They are on different servers but in the same data center.

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:

carlo@kanatasmokehouse.com
Unrouteable address

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

Return-path: <lorenzo@marketing.ca>
Received: from market by mail.marketing.ca with local (Exim 4.52)
id 1GVCJu-0006f8-7R
for carlo@kanatasmokehouse.com; Wed, 04 Oct 2006 14:22:18 -0500
Received: from 71.221.227.79 ([71.221.227.79])
(SquirrelMail authenticated user lorenzo@marketing.ca)
by marketing.ca with HTTP;
Wed, 4 Oct 2006 14:22:18 -0500 (CDT)
Message-ID: <4199.71.221.227.79.1159989738.squirrel@marketing.ca>
Date: Wed, 4 Oct 2006 14:22:18 -0500 (CDT)
Subject: testing
From: lorenzo@marketing.ca
To: carlo@kanatasmokehouse.com
User-Agent: SquirrelMail/1.4.4
MIME-Version: 1.0
Content-Type: text/plain;charset=iso-8859-1
Content-Transfer-Encoding: 8bit
X-Priority: 3 (Normal)
Importance: Normal


testing

[ngsupb]

It is going to be hard
can you log in to the server "marketing.ca" and type

dig @localhost MX kanatasmokehouse.com

Let me know what MX record you get.

[Jedito]

Forgive me for too many questions, but can you send emails from marketing.ca to anywhere but to kanatasmokehouse.com, right?
Is not kanatasmokehouse.com on /etc/localdomains on the server where marketing.ca is it? or vice-versa?

Are you using Cpanel? if yes, check for the existence of /etc/eximmailtrap if its there, delete it and change /var/cpanel/cpanel.config is set to eximmailtrap=0.

Do this happen only when you try to send emails through webmail? or if you use a normal Email client too?
Are you sure that you don't have set WHM > Tweak Settings > Prevent the user 'nobody' from sending out mail to remote addresses ?

[berdo9DS]

ngsupb - here is the MX record (right as rain)

root@mail [~]# dig @localhost MX kanatasmokehouse.com

; <<>> DiG 9.2.4 <<>> @localhost MX kanatasmokehouse.com
; (1 server found)
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 60639
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 3

;; QUESTION SECTION:
;kanatasmokehouse.com. IN MX

;; ANSWER SECTION:
kanatasmokehouse.com. 14400 IN MX 0 kanatasmokehouse.com.

;; AUTHORITY SECTION:
kanatasmokehouse.com. 86400 IN NS ns2.rdns20.net.
kanatasmokehouse.com. 86400 IN NS ns1.rdns20.net.

;; ADDITIONAL SECTION:
kanatasmokehouse.com. 14400 IN A 74.52.4.42
ns1.rdns20.net. 172800 IN A 74.52.4.42
ns2.rdns20.net. 172800 IN A 74.52.4.43

;; Query time: 299 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Wed Oct 4 14:56:02 2006
;; MSG SIZE rcvd: 148

Jedito,

This error is being reported only when i send email from marketing.ca to kanatasmokehouse.com. I can send email's anywhere else from marketing.ca. This issue is not only with emails sent from marketing.ca but it is the only way I can duplicate the error. The customer reports that roughly 60% of all emails sent to him are bounced back with the the same error. Since I am sending emails thru a pop3 account and not thru a mailer they are not being sent as nobody, but regardless I have disabled and enabled and it did make a difference. I disabled eximmailtrap and the problem still exists.

[berdo9DS]

sending thru outlook i get the following error:

The following recipient(s) could not be reached:

'carlo@kanatasmokehouse.com' on 10/4/2006 4:22 PM
503 No recipient(s)

[DaveDark]

Try /usr/sbin/exim -v 'carlo@kanatasmokehouse.com'
type your message
and then type ctrl + d

on the box that can't send to kanatasmokehouse.com. See if you can send the mail as root as per the above command. If so, it's probably account specific or dns related. If not, what's the error?

[berdo9DS]

here is the output,

root@mail [~]# /usr/sbin/exim -v 'carlo@kanatasmokehouse.com'
testingLOG: MAIN
<= root@mail.marketing.ca U=root P=local S=283
root@mail [~]# delivering 1GVFOp-0007UM-Cv
LOG: MAIN
** carlo@kanatasmokehouse.com: Unrouteable address
LOG: MAIN
<= <> R=1GVFOp-0007UM-Cv U=mailnull P=local S=1123
delivering 1GVFOu-0007UP-JG
LOG: MAIN
Completed
LOG: MAIN PANIC
User 0 set for local_delivery transport is on the never_users list
LOG: MAIN
== root@mail.marketing.ca R=localuser T=local_delivery defer (-29): User 0 set for local_delivery transport is on the never_users list

[DaveDark]

Do you have any custom configs in the advanced exim editor? (/etc/exim.conf)
Is the domain in /etc/localdomains, /etc/relayhosts,
/etc/remotedomains?

What happens when you try and use the Mail Troubleshooter for that address in WHM?

You're welcome to submit a ticket to us so we can look into this in detail.

[fusionapps]

220-mail.marketing.ca ESMTP Exim 4.52 #1 Thu, 05 Oct 2006 16:39:52 -0500
220-We do not authorize the use of this system to transport unsolicited,
220 and/or bulk e-mail.
HELO
250 mail.marketing.ca Hello [67.90.XXX.XXX]
mail from: test@test.com
250 OK
rcpt to: carlo@kanatasmokehouse.com
550-ip67-90-XXX-XX.zXXX-90-67.customer.algx.net () [67.90.XXX.XXX] is currently
550-not permitted to relay through this server. Perhaps you have not logged
550-into the pop/imap server in the last 30 minutes or do not have SMTP
550 Authentication turned on in your email client.
quit
221 mail.marketing.ca closing connection

Connection to host lost.
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