On Mon, Aug 10, 2026 at 11:48:19PM -0400, John Levine via mailop wrote:
> >John, maybe I should ask on the Postfix list but sicne you mentioned
> >it; this doesn't cause issues with "real" servers who don’t wait to
> >talk then?
>
> As far as I know, there's no such thing. Real servers all wait for
> the greeting. Anything that doesn't is a spambot.
A small minority of legitimate servers could be (mis)configured with
excessively short greeting timeouts, but this is not common, and the
traffic they send likely to be of low value.
--
Viktor. 🇺🇦 Слава Україні!
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