On Thu, Nov 27, 2025 at 12:01:13AM +0000, Kyrian (List) via mailop wrote:
> What's the consensus? In times where 2 factor authentication emails are
> frequently completely pointless trying to go through greylisting where they
> are delayed beyond their timeouts. But where spammers obviously still
> persist. Is it still worth trying to greylist, or rely on other methods
> instead? Is it the case where SMTP-time spam/virus scanning is a necessity
> and greylisting should be removed? How do other folks on the list balance
> out this conflict in their systems?

I am using greylisting only for cases where something looks suspicious
(no Reverse DNS, no TLS, DNSBL, ...), so most non-spam emails go
through without delay. And there are still some spam senders who don't
seem to retry (and if they to retry, the delay might also help get
better data from DNSBLs).


Christof

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