On Tue, May 28, 2024 at 10:03:05PM -0400, John Hill via Postfix-users wrote:
> Mail all works but I still can't block these SASL attempt.
To block SASL authentication attempts (rather than mail transactions),
you need to do the RBL check in "smtpd_client_restrictions", and have
"smtpd_delay_reject=no", per my just posted follow up.
--
Viktor.
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