Domain Names/Static IP
Managing, controlling, and support for Custom Domain Names
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Visitor

PTR help needed

I had Comcast create a reverse dns entry for our mail server's static IP.

However, it does not resolve correctly.

 

96.93.xx.xxx resolves to
"exchange.mydomain.com.xx.93.96.in-addr.arpa"
Top Level Domain: "in-addr.arpa"
 
It needs to resolve to exchange.mydomain.com
 
I have called Comcast support at least 5 times.
 
What can I do? 
 
 
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3 REPLIES 3
Trusted Forum Contributor

Re: PTR help needed

Hello smsschulz and welcome,

 

Per the following DNSGoodies provided information I do not believe exchange.mydomain.com is a valid personalized enough domain name:

 

A mydomain-11.mydomain.com.
66.96.163.137
 
MX mydomain-11.mydomain.com.
0 mx-mg.mydomain.com.
 
CNAME mydomain-11.mydomain.com.
 
NS mydomain-11.mydomain.com.
 
PTR mydomain-11.mydomain.com.
 
SOA mydomain-11.mydomain.com.
 
 

 

 

As you can see there is no zone file records contained with this domain name. Please look into obtaining a more personalized domain name for your mail server and then the correct Reversed DNS can be provided.

 

Hope this helps you out.

 

 

 

 

 

 

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Visitor

Re: PTR help needed

No mydomain.com is not the actual domain.

It was used for an example.

 

 

 

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Community Manager
Community Manager

Re: PTR help needed

HI smschulz.  Please send me a private message with your mail server name/domain, the static IP and the account number. 

 

Thank You

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