Lefteris Tsintjelis:
> On 25/12/2021 16:50, Wietse Venema wrote:
> > Wietse Venema:
> >
> > Rejects for SMTP syntax and SASL login are evaluated separate from
> > smtpd_{client, helo, etc}_restrictions.
>
> SASL was my main concern. Is it possible to evaluate and reveal that
> info last then after all other rejects instead of first and still have
> the delay rejects on?
As documented, smtpd_delay_reject controls the protocol stage when
smtpd_mumble_restrictions are evaluated. That is all it does.
Use fail2ban etc. to lock out bad clients, whether they fail SASL
requirements, rate limit requirements, or other requirements.
Wietse
