Hi,
On Tue, Feb 10, 2026 at 1:35 PM Matus UHLAR - fantomas via Postfix-users <
[email protected]> wrote:
> On 09.02.26 15:58, Alex via Postfix-users wrote:
> >What would that look like?
> >
> >submission inet n - n - - smtpd
> > -o smtpd_tls_security_level=encrypt
> > -o smtpd_sasl_auth_enable=yes
> > -o smtpd_recipient_restrictions={check_policy_service inet:
> 127.0.0.1:10031
> >,permit_sasl_authenticated,reject}
> > -o smtpd_relay_restrictions=permit_sasl_authenticated,reject
> > -o milter_macro_daemon_name=ORIGINATING
> > -o receive_override_options=$submission_overrides
> > -o syslog_name=postfix/submission
> > -o sender_dependent_default_transport_maps=
> > -o sender_canonical_maps=
> > -o sender_canonical_classes=
> > -o recipient_canonical_maps=
> > -o recipient_canonical_classes=
> > -o smtpd_milters=
> > -o non_smtpd_milters=
> > -o milter_default_action=tempfail
>
> note that if your intent is to filter spam, you should better implement
> policy filter in
>
> smtp_data_restrictions
> - to find out number of recipients
>
> and/or
>
> smtpd_end_of_data_restrictions
> - to know the total size of mail sent
>
> I have implemented postfwd, and use it on both of those, counting total
> number of recipients/mails per unit in the first and total size of mail
> send
> in the latter
> (can provide details if needed)
>
Yes, please. Although I finally have cbpolicyd/cluebringer running,
configuring it is another whole project, it seems.
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