Hey,
I'm fully aware DMARC does not sign,but thanks for the clarification on
 if I dont specify smtpd_milters in smtps or submission it's still implied
from the main.cf entry,  will use the logwhy advice in the morning, thanks
heaps

On Tue, Oct 24, 2023 at 7:46 PM Matus UHLAR - fantomas via Postfix-users <
postfix-users@postfix.org> wrote:

> On 24.10.23 14:35, Nick Edwards via Postfix-users wrote:
> > I need a refresher hand with DKIM, we have in main.cf
> >
> >smtpd_milters = inet:127.0.0.1:8891,inet:127.0.0.1:8892
> >non_smtpd_milters = $smtpd_milters
> >milter_default_action = accept
> >spfpolicy_time_limit = 3600
> >milter_protocol = 6
> >
> >DKIM is 8891, DMARC is 8892 we had questions that it is not signing those
> >who use smtps or submission
>
> dmarc does no signing, DKIM does, but the milter must decide to sign.
> look at your dkim config, with opendkim perhaps the "LogWhy" option.
>
> >master.cf says
> >
> >smtps     inet  n       -       n       -       -       smtpd
> >  -o smtpd_tls_wrappermode=yes
> >  -o smtpd_sasl_auth_enable=yes
> >  -o smtpd_client_restrictions=$submission_client_restrictions
> >  -o smtpd_recipient_restrictions=$submission_recipient_restrictions
> >  -o receive_override_options=no_header_body_checks
> >  -o smtpd_helo_restrictions=
> >  -o smtpd_sender_restrictions=
> >  -o smtpd_data_restrictions=
> >  -o smtpd_client_connection_rate_limit=1000
> >  -o content_filter=
> >
> >submission is identical - almost, we don't include
> >smtpd_milters = inet:127.0.0.1:8891  in smtps and submission,
> >is this needed? I was thinking non_smtpd_foo  basically means it is
> >included, but then you wouldn't do dmarc checking there so I got to
> >thinking again, maybe not..
>
> If you don't override smtpd_milters in master.cf for smtps/submission
> services, the default settings (from main.cf) will apply.
>
> Note that you don't need dmarc for outgoing mail, just DKIM signing.
>
> >Just asking the collective guru's here before I change/break anything
> given
> >my lengthy time away for running  pf boxes :)
> >maybe an above option is cancelling out something?
>
>
> --
> Matus UHLAR - fantomas, uh...@fantomas.sk ; http://www.fantomas.sk/
> Warning: I wish NOT to receive e-mail advertising to this address.
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