Hi
I have s smtp configured server , the problem i am facing is that i am not able to sent emails to some domains for instance yahoo.com or ymail.com
rest all domains the email goes through

when i checked the mailq i found this

o8D7Ign7026878 28 Mon Sep 13 07:19 <customerrelations@airarabia.com>
(Deferred: Name server: yahoo.com.: host name lookup failure)
<diastony69@yahoo.com>
o8D6ULEM026723 32 Mon Sep 13 06:33 <customerrelations@airarabia.com>
(Deferred: Name server: yahoo.com.: host name lookup failure)
<fernfrancis03@yahoo.com>



so i did a nslookup which gave me the following result
nslookup yahoo.com
Server: 10.4.122.70
Address: 10.4.122.70#53

Non-authoritative answer:
Name: yahoo.com
Address: 67.195.160.76
Name: yahoo.com
Address: 69.147.125.65
Name: yahoo.com
Address: 72.30.2.43
Name: yahoo.com
Address: 98.137.149.56
Name: yahoo.com
Address: 209.191.122.70


please someone help me solve this issue urgently

thanks

Do you previously sends and receives email to yahoo or is it just now? If your smtp server was configured properly, then it should be more of a DNS issue. You also have to check if you have a Reverse DNS for your mail server domain..

check or test your reverse dns
#nslookup your.mail.domain
and look for the Non-authoritative answer portion...

or
#host your.mail.domain

yes it is a DNS issue , when i telnet
nslookup
> set q=MX
> yahoomail.com
;; connection timed out; no servers could be reached

how do i solve this issue with the DNS rest all domains can be reached

Hi set DKIM ...

Hi subho.d
i am not getting wht u meant
can you elaborate

my dns server is able to resolve the yahoo domain but the server is not able to