Simple steps to configure reverse DNS lookup Amazon Route 53 Reverse DNS lookup is the process used to resolve an IP address to its domain name. It requires a DNS pointer record (PTR). In Amazon Route 53, adding a PTR record to an existing public hosted zone will not work; you must create a separate reverse public hosted zone to hold the PTR record. Reverse lookup if generally required by SMTP servers or any other application which require reverse lookup to …
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