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Old 09-13-2010, 03:43 AM   #1
fernfrancis
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Registered: Feb 2009
Location: Goa(India)-Sharjah(UAE)
Distribution: RHEL,centos,fedora,ubuntu
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smtp issue


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
 
Old 09-14-2010, 12:48 AM   #2
ionrivera
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Registered: May 2010
Distribution: Debian, RHEL, AIX, Solaris, HP-UX
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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
 
Old 09-15-2010, 06:40 AM   #3
fernfrancis
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Registered: Feb 2009
Location: Goa(India)-Sharjah(UAE)
Distribution: RHEL,centos,fedora,ubuntu
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Original Poster
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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
 
Old 09-15-2010, 07:01 AM   #4
subho.d
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Registered: Jun 2010
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Hi set DKIM ...
 
Old 09-15-2010, 07:22 AM   #5
fernfrancis
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Registered: Feb 2009
Location: Goa(India)-Sharjah(UAE)
Distribution: RHEL,centos,fedora,ubuntu
Posts: 229

Original Poster
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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

Last edited by fernfrancis; 09-15-2010 at 07:24 AM.
 
  


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