OpenDMARK Check (Ubuntu 18.04)

Noch in Bearbeitung

Installation

sudo apt-get install -y opendmarc

Bei der Frage Configure database for opendmarc with dbconfig-common? die Antwort NEIN wählen.

Konfiguration

Die Datei

sudo vi /etc/opendmarc.conf

bearbeiten und folgende Parameter anpassen bzw. hinzufügen:

AuthservID OpenDMARC

Socket inet:12345@localhost

TrustedAuthservIDs mail1.kirner.or.at

## Optional
#RejectFailures true

## You may want OpenDMARC to ignore SMTP clients that are successfully 
## authenticated via SMTP AUTH.
IgnoreAuthenticatedClients true

## This will reject emails that don't conform to email header standards 
## as described in RFC5322. For example, if an incoming email doesn't 
## have From: header or date: header, it will be rejected.
RequiredHeaders true

## This will cause OpenDMARC to perform a fallback SPF check itself when 
## it can find no SPF results in the message header.
SPFSelfValidate true

Zum Abschluss den Service neustarten:

sudo systemctl restart opendmarc.service

Postfix

Die Konfigurationsdatei

sudo vi /etc/postfix/main.cf

bearbeiten und den Socket inet:12345@localhost hinzufügen:

## Spamfilter und DKIM-Signaturen via Rspamd ##
smtpd_milters = inet:localhost:11332, inet:localhost:8892, inet:localhost:12345
non_smtpd_milters = inet:localhost:11332, inet:localhost:8892, inet:localhost:12345
milter_protocol = 6
milter_mail_macros =  i {mail_addr} {client_addr} {client_name} {auth_authen}
milter_default_action = accept

Danach postfix neustarten: