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My domain name is "". I have setup my DNS server for mail server. I am using "" to lookup DNS entries. My all entries are OK eventhough i am getting MX lookup result as I want it to be my Domain IP. Operating System is Cent OS 5.

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Your IP address for both the domain and the sub-domain are – soandos Dec 11 '11 at 11:13
It's fairly foolish to blank out an IP address that you are intending to publish, and indeed are publishing (as both d34dh0r53's and my tests confirm), to the world. Have a well-earned -1 for not even doing (and including in your question) the basic tests that I and d34dh0r53 both did, and then pointlessly obfuscating your data. – JdeBP Dec 11 '11 at 11:37
up vote 3 down vote accepted

Looks ok to me:

$dig -t mx

; <<>> DiG 9.7.3-P3 <<>> -t mx
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 36069
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 3, ADDITIONAL: 2

;         IN  MX

;; ANSWER SECTION:      14400   IN  MX  0

;; AUTHORITY SECTION:      86400   IN  NS      86400   IN  NS      86400   IN  NS

;; ADDITIONAL SECTION: 14400   IN  A 14400   IN  A

;; Query time: 418 msec
;; WHEN: Sun Dec 11 05:16:05 2011
;; MSG SIZE  rcvd: 139
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