From 2f9574850b356a746ee3ff9a8a311c450784b53c Mon Sep 17 00:00:00 2001
From: Guilhem Moulin <guilhem@fripost.org>
Date: Sat, 16 May 2020 18:26:53 +0200
Subject: MX: Install OpenDMARC to add Authentication-Results headers.

On the infrastructure boundary.  We don't reject/quarantine as it would
affect members who forward their mail sent to <user@example.com> to
<user@fripost.org>.  Members can install Sieve rules to send any
messages with failed Authentication-Results headers directly in their
spambox.
---
 roles/MX/files/etc/opendmarc.conf | 103 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 103 insertions(+)
 create mode 100644 roles/MX/files/etc/opendmarc.conf

(limited to 'roles/MX/files/etc/opendmarc.conf')

diff --git a/roles/MX/files/etc/opendmarc.conf b/roles/MX/files/etc/opendmarc.conf
new file mode 100644
index 0000000..4a0b89c
--- /dev/null
+++ b/roles/MX/files/etc/opendmarc.conf
@@ -0,0 +1,103 @@
+# This is a basic configuration that can easily be adapted to suit a standard
+# installation. For more advanced options, see opendkim.conf(5) and/or
+# /usr/share/doc/opendmarc/examples/opendmarc.conf.sample.
+
+##  AuthservID (string)
+##  	defaults to MTA name
+#
+# AuthservID name
+
+##  FailureReports { true | false }
+##  	default "false"
+##
+# FailureReports false
+
+##  RejectFailures { true | false }
+##  	default "false"
+##
+RejectFailures false
+
+##  Socket socketspec
+##  	default (none)
+##
+##  Specifies the socket that should be established by the filter to receive
+##  connections from sendmail(8) in order to provide service.  socketspec is
+##  in one of two forms: local:path, which creates a UNIX domain socket at
+##  the specified path, or inet:port[@host] or inet6:port[@host] which creates
+##  a TCP socket on the specified port for the appropriate protocol family.
+##  If the host is not given as either a hostname or an IP address, the
+##  socket will be listening on all interfaces.  This option is mandatory
+##  either in the configuration file or on the command line.  If an IP
+##  address is used, it must be enclosed in square brackets.
+#
+Socket local:/var/run/opendmarc/opendmarc.sock
+
+##  Syslog { true | false }
+##  	default "false"
+##
+##  Log via calls to syslog(3) any interesting activity.
+#
+Syslog true
+
+##  SyslogFacility facility-name
+##  	default "mail"
+##
+##  Log via calls to syslog(3) using the named facility.  The facility names
+##  are the same as the ones allowed in syslog.conf(5).
+#
+# SyslogFacility mail
+
+##  TrustedAuthservIDs string
+##  	default HOSTNAME
+##
+##  Specifies one or more "authserv-id" values to trust as relaying true
+##  upstream DKIM and SPF results.  The default is to use the name of
+##  the MTA processing the message.  To specify a list, separate each entry
+##  with a comma.  The key word "HOSTNAME" will be replaced by the name of
+##  the host running the filter as reported by the gethostname(3) function.
+#
+# TrustedAuthservIDs HOSTNAME
+
+##  SPFIgnoreResults { true | false }
+##  	default "false"
+##
+##  Causes the filter to ignore any SPF results in the header of the message.
+##  This is useful if you want the filter to perfrom SPF checks itself, or
+##  because you don't trust the arriving header.
+#
+SPFIgnoreResults true
+
+##  SPFSelfValidate { true | false }
+##  	default "false"
+##
+##  Causes the filter to perform a fallback SPF check itself when it can
+##  find no SPF results in the message header.  If SPFIgnoreResults is also
+##  set, it never looks for SPF results in headers and always performs the
+##  SPF check itself when this is set.
+#
+SPFSelfValidate true
+
+##  UMask mask
+##  	default (none)
+##
+##  Requests a specific permissions mask to be used for file creation.  This
+##  only really applies to creation of the socket when Socket specifies a
+##  UNIX domain socket, and to the HistoryFile and PidFile (if any); temporary
+##  files are normally created by the mkstemp(3) function that enforces a
+##  specific file mode on creation regardless of the process umask.  See
+##  umask(2) for more information.
+#
+UMask 0007
+
+##  UserID user[:group]
+##  	default (none)
+##
+##  Attempts to become the specified userid before starting operations.
+##  The process will be assigned all of the groups and primary group ID of
+##  the named userid unless an alternate group is specified.
+#
+# UserID opendmarc
+
+## Path to system copy of PSL (needed to determine organizational domain)
+#
+PublicSuffixList /usr/share/publicsuffix/
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