Reference distribution: Debian GNU/Linux 12 Bookworm.
apt install opendmarc
OpenDMARC requires a backend database, it can be confifgured automatically with dbconfig-common.
The /usr/sbin/opendmarc daemon should be running, the service is controlled by systemd:
systemctl status opendmarc.service
Se si desidera che il demone sia in ascolto sul una porta TCP invece che su un socket si modifica il file /etc/opendmarc.conf:
#Socket local:/run/opendmarc/opendmarc.sock Socket inet:8893@127.0.0.1