How to verify rDNS (reverse DNS)/PTR Record
RDNS (Reverse DNS) resolves an IP address to a domain name. To find rDNS for an IP address, you can
Find Reverse-DNS/PTR using dig, nslookup, host
Reverse-DNS/PTR is used by mail servers. It is used to map an IP address to FQDN or hostname. To find
rDNS / Reverse DNS / PTR Record
Reverse DNS record or PTR Record is generally used by mail servers. Usually, the server’s hostname (FQDN – Fully Qualified