Hi Matus,

As suggested by Wietse and you, I want to add the DKIM signature to amavis in conjunction with OpenDKIM, but I'm not yet where I need to be with the configuration.

I manage to get a signature added, but there are problems with the socket. The following is configured in /etc/opendkim.conf:

# Socket for the MTA connection (required). If the MTA is inside a chroot jail, # it must be ensured that the socket is accessible. In Debian, Postfix runs in
# a chroot in /var/spool/postfix, therefore a Unix socket would have to be
# configured as shown on the last line below.
#Socket                 local:/run/opendkim/opendkim.sock
#Socket                 inet:8891@localhost
#Socket                 inet:8891
#Socket local:/var/spool/postfix/opendkim/opendkim.sock
Socket                  inet:8892@localhost

And in the /etc/postfix/main.cf file:

# Milter configuration
milter_default_action = accept
milter_protocol = 6
smtpd_milters = local:opendkim/opendkim.sock, local:opendmarc/opendmarc.sock, inet:127.0.0.1:8892 non_smtpd_milters = local:opendkim/opendkim.sock, local:opendmarc/opendmarc.sock, inet:127.0.0.1:8892

But I get error messages like this one in the mail.log:


Am 24.12.2024 um 15:44 schrieb Matus UHLAR - fantomas via Postfix-users:
On 24.12.24 09:08, Andreas Kuhlen via Postfix-users wrote:
I have to correct myself. If I only add the no_milters here, a DKIM signature is added and the header check also works, it looks like, but for the body is reported:

127.0.0.1:10025   inet   n    -     n     -     -    smtpd
    -o syslog_name=postfix/10025
[ ... ]
    -o receive_override_options=no_header_body_checks,no_unknown_recipient_checks,no_address_mappings,*no_milters*

Authentication-Results: mx.google.com;
      [email protected] header.s=default header.b="SD5q/dfp";       *dkim=neutral (body hash did not verify) [email protected] header.s=default header.b=kyrK6Z3o;*

Perhaps I should test whether I let amavis handle the DKIM?

Yeah, this should help.
On systems with both amavis and opendkim I use amavis to dkim-sign.


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