Windows 2016 reverse dns not updating

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We now accept dynamic updates of PTR records within our zones.

This means that after the sending IP address is checked, if the reverse DNS does not match the sending domain, then it is classed as “unauthenticated”.We put “unauthenticated” in quotes because having a Reverse DNS record attached to your domain does not automatically guarantee acceptance of email originating from your domain by the recipient’s email server.It’s just that non-matching or generic reverse DNS lookup settings are often rejected out of hand.Reverse DNS (r DNS) is the inverse process of this: the resolution of an IP address to its designated domain name. One level below the arpa root are the delegated servers for IPv4 and ip6for IPv6.This document explains how reverse DNS works and how to configure it for your zone. Further down the tree, there are delegations for the /8 blocks that IANA allocated to the RIRs, the allocations that the RIRs gave to the address holders, all the way down to the individual IP addresses and names that you have configured for your Internet-enabled hosts.To install the DNS Server role, we can open an elevated Windows Power Shell console (right-click the Power Shell icon and select Run as Administrator from the shortcut menu) and run a single command: Install-Windows Feature -Name DNS -Include All Sub Feature -Include Management Tools If you're more of a GUI-minded administrator, you can use Server Manager to install DNS Server.

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