On Wed, 16 Oct 2024 at 14:43, Viktor Dukhovni via Postfix-users < postfix-users@postfix.org> wrote:
> > Configure the system resolver to be *authoritative* for the IP > address(es) in question, serving an "empty" zone (perhaps just SOA and > NS). If the address block is smaller than a /24, you'll need to list > each individual IP address as an empty zone. If larger, configure > multiple /24s, ... > > Unbound, for example, can be configured to nxdomain specific names and > their subdomains (simpler than a proper empty zone). > Thanks, I'm not currently running a DNS resolver on the server, but if the unresponsive PTR record issue persists I'll look into Unbound or maybe Dnsmasq.
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