[Piggybacking as I didn't see Matt's message directly]
On Mon, 19 Feb 2024, Gellner, Oliver wrote:
On 16.02.2024 at 03:38 Matt Palmer via mailop wrote:
Although I must say that
without reverse DNS
would seem to be the easier blocking option -- when was the last time you saw
legitimate mail from an IP without rDNS?
It isn't like DNS (data), the servers involved, and network paths never
fail.
/mark
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