In this case, it is easiest to simply have your ISP create the necessary records on their side. There are two steps:. There are four steps to delegating this block to us:. Create a DNS zone for 4. Remember, the reverse of a given IP address A. D is served from the zone D. This is where you will create the PTR records for your addresses. Click the plus sign below the table to add a new set of nameservers.
Give the configuration a name, and select a group of name servers from the dropdown menu it should apply to. NOTE: This must be the same group of name servers that the domain s you will apply the configuration to are assigned. Within the zone you just created, add a PTR record. Select your Domain.
Enter the following values for the PTR record:. In this example, our IP address is For the system field, you will enter the hostname of the A record you are using to point to your mail server and append it with a dot.
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