- added DMARC (opendmarc) support with basic setup

postfix/default-opendmarc

@@ -0,0 +1,11 @@
+# Command-line options specified here will override the contents of
+# /etc/opendmarc.conf. See opendmarc(8) for a complete list of options.
+#DAEMON_OPTS=""
+#
+# Uncomment to specify an alternate socket
+# Note that setting this will override any Socket value in opendkim.conf
+#SOCKET="local:/var/run/opendmarc/opendmarc.sock" # default
+#SOCKET="inet:54321" # listen on all interfaces on port 54321
+#SOCKET="inet:12345@localhost" # listen on loopback on port 12345
+#SOCKET="inet:12345@192.0.2.1" # listen on 192.0.2.1 on port 12345
+SOCKET="inet:54321@localhost"

postfix/main.cf

@@ -61,5 +61,5 @@ content_filter = smtp-amavis:[127.0.0.1]:10024
 # Milters used by DKIM
 milter_protocol = 2
 milter_default_action = accept
-smtpd_milters = inet:localhost:12301
-non_smtpd_milters = inet:localhost:12301
+smtpd_milters = inet:localhost:12301,inet:localhost:54321
+non_smtpd_milters = inet:localhost:12301,inet:localhost:54321

postfix/opendmarc.conf

@@ -0,0 +1,8 @@
+
+PidFile /var/run/opendmarc.pid
+RejectFailures false
+Syslog true
+UMask 0002
+UserID opendmarc:opendmarc
+IgnoreHosts /etc/opendmarc/ignore.hosts
+HistoryFile /var/run/opendmarc/opendmarc.dat