The firewall has nothing to do with your problem. The change is
coincidental.
Your problem is that the rDNS for your IP address does not resolve:
$ host altcladding.com.ph
altcladding.com.ph has address 122.3.237.67
altcladding.com.ph mail is handled by 10 mail.altcladding.com.ph.
$ host mail.altcladding.com.ph
mail.altcladding.com.ph has address 122.3.237.72
$ host 122.3.237.72
72.237.3.122.in-addr.arpa domain name pointer 122.3.237.72.pldt.net.
$ host 122.3.237.72.pldt.net
Host 122.3.237.72.pldt.net not found: 3(NXDOMAIN)
$
It would be best if the rDNS record pointed to mail.altcladding.com.ph
instead of 122.3.237.72.pldt.net, but if there were simply a (type A)
DNS record for 122.3.237.72.pldt.net, that would suffice.
This is something that your ISP (who provides the IP address to you)
needs to fix for you. You need to contact them to get it changed. They
should have a procedure in place, either a web app or manually, to
change the rDNS record for your IP address(es). You'll need to provide
them with the name you would like to use (mail.altcladding.com.ph). Of
course, you also need to be sure that mail.altcladding.com.ph resolves
to that address, which it does.
--
-Eric 'shubes'
On 04/21/2011 06:26 AM, [email protected] wrote:
Thanks Maxwell. Our recent changes was, we only put our Mail Server
mail.altcladding.com.ph behind cisco firewall with NAT and still use the same
DNS& IP.
Regards,
Malvin
You appear to have a DNS error.
a61.com.sg resolves to 202.166.88.42 and not 203.125.98.162 Did you recently
change your DNS?
On 04/20/2011 01:44 AM, [email protected] wrote:
Hi All,
We keep on receiving bounce back email when sending to specific client. Can
someone help us identify what is causing the problem. Please see below sample
bounce back email:
----- Original Message ----- From:<[email protected]>
To:<[email protected]>
Sent: Thursday, April 14, 2011 4:02 PM
Subject: failure notice
Hi. This is the qmail-send program at mail.altcladding.com.ph.
I'm afraid I wasn't able to deliver your message to the following addresses.
This is a permanent error; I've given up. Sorry it didn't work out.
<[email protected]>:
User and password not set, continuing without authentication.
203.125.98.162 does not like recipient.
Remote host said: 450 Client host rejected: cannot find your hostname,
[122.3.237.69]
Giving up on 203.125.98.162.
I'm not going to try again; this message has been in the queue too long.
<[email protected]>:
User and password not set, continuing without authentication.
203.125.98.162 does not like recipient.
Remote host said: 450 Client host rejected: cannot find your hostname,
[122.3.237.69]
Giving up on 203.125.98.162.
I'm not going to try again; this message has been in the queue too long.
Regards,
Malvin
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Qmailtoaster is sponsored by Vickers Consulting Group
(www.vickersconsulting.com)
Vickers Consulting Group offers Qmailtoaster support and installations.
If you need professional help with your setup, contact them today!
---------------------------------------------------------------------------------
Please visit qmailtoaster.com for the latest news, updates, and packages.
To unsubscribe, e-mail: [email protected]
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