diff --git a/postfix/config.sls b/postfix/config.sls
index 24bd121..3c11d4e 100644
--- a/postfix/config.sls
+++ b/postfix/config.sls
@@ -20,3 +20,16 @@ include:
     - watch_in:
       - service: postfix
     - template: jinja
+
+/etc/postfix/master.cf:
+  file.managed:
+    - source: salt://postfix/files/master.cf
+    - user: root
+    - group: root
+    - mode: 644
+    - require:
+      - pkg: postfix
+    - watch_in:
+      - service: postfix
+    - template: jinja
+
diff --git a/postfix/files/main.cf b/postfix/files/main.cf
index 8968c14..2ff9d80 100644
--- a/postfix/files/main.cf
+++ b/postfix/files/main.cf
@@ -47,6 +47,9 @@
 {{ set_parameter('recipient_delimiter', '+') }}
 {{ set_parameter('inet_interfaces', 'all') }}
 {{ set_parameter('message_size_limit', '41943040') }}
+{{ set_parameter('policyd-spf_time_limit', '3600s') }}
+{{ set_parameter('smtpd_relay_restrictions', 'permit_mynetworks permit_sasl_authenticated defer_unauth_destination check_policy_service unix:private/policyd-spf') }}
+
 
 {% if 'virtual' in pillar.get('postfix','') %}
 virtual_alias_maps = hash:/etc/postfix/virtual
diff --git a/postfix/files/master.cf b/postfix/files/master.cf
new file mode 100644
index 0000000..47c7a11
--- /dev/null
+++ b/postfix/files/master.cf
@@ -0,0 +1,126 @@
+#
+# Postfix master process configuration file.  For details on the format
+# of the file, see the master(5) manual page (command: "man 5 master" or
+# on-line: http://www.postfix.org/master.5.html).
+#
+# Do not forget to execute "postfix reload" after editing this file.
+#
+# ==========================================================================
+# service type  private unpriv  chroot  wakeup  maxproc command + args
+#               (yes)   (yes)   (yes)   (never) (100)
+# ==========================================================================
+smtp      inet  n       -       -       -       -       smtpd
+#smtp      inet  n       -       -       -       1       postscreen
+#smtpd     pass  -       -       -       -       -       smtpd
+#dnsblog   unix  -       -       -       -       0       dnsblog
+#tlsproxy  unix  -       -       -       -       0       tlsproxy
+#submission inet n       -       -       -       -       smtpd
+#  -o syslog_name=postfix/submission
+#  -o smtpd_tls_security_level=encrypt
+#  -o smtpd_sasl_auth_enable=yes
+#  -o smtpd_reject_unlisted_recipient=no
+#  -o smtpd_client_restrictions=$mua_client_restrictions
+#  -o smtpd_helo_restrictions=$mua_helo_restrictions
+#  -o smtpd_sender_restrictions=$mua_sender_restrictions
+#  -o smtpd_recipient_restrictions=
+#  -o smtpd_relay_restrictions=permit_sasl_authenticated,reject
+#  -o milter_macro_daemon_name=ORIGINATING
+#smtps     inet  n       -       -       -       -       smtpd
+#  -o syslog_name=postfix/smtps
+#  -o smtpd_tls_wrappermode=yes
+#  -o smtpd_sasl_auth_enable=yes
+#  -o smtpd_reject_unlisted_recipient=no
+#  -o smtpd_client_restrictions=$mua_client_restrictions
+#  -o smtpd_helo_restrictions=$mua_helo_restrictions
+#  -o smtpd_sender_restrictions=$mua_sender_restrictions
+#  -o smtpd_recipient_restrictions=
+#  -o smtpd_relay_restrictions=permit_sasl_authenticated,reject
+#  -o milter_macro_daemon_name=ORIGINATING
+#628       inet  n       -       -       -       -       qmqpd
+pickup    unix  n       -       -       60      1       pickup
+cleanup   unix  n       -       -       -       0       cleanup
+qmgr      unix  n       -       n       300     1       qmgr
+#qmgr     unix  n       -       n       300     1       oqmgr
+tlsmgr    unix  -       -       -       1000?   1       tlsmgr
+rewrite   unix  -       -       -       -       -       trivial-rewrite
+bounce    unix  -       -       -       -       0       bounce
+defer     unix  -       -       -       -       0       bounce
+trace     unix  -       -       -       -       0       bounce
+verify    unix  -       -       -       -       1       verify
+flush     unix  n       -       -       1000?   0       flush
+proxymap  unix  -       -       n       -       -       proxymap
+proxywrite unix -       -       n       -       1       proxymap
+smtp      unix  -       -       -       -       -       smtp
+relay     unix  -       -       -       -       -       smtp
+#       -o smtp_helo_timeout=5 -o smtp_connect_timeout=5
+showq     unix  n       -       -       -       -       showq
+error     unix  -       -       -       -       -       error
+retry     unix  -       -       -       -       -       error
+discard   unix  -       -       -       -       -       discard
+local     unix  -       n       n       -       -       local
+virtual   unix  -       n       n       -       -       virtual
+lmtp      unix  -       -       -       -       -       lmtp
+anvil     unix  -       -       -       -       1       anvil
+scache    unix  -       -       -       -       1       scache
+#
+# ====================================================================
+# Interfaces to non-Postfix software. Be sure to examine the manual
+# pages of the non-Postfix software to find out what options it wants.
+#
+# Many of the following services use the Postfix pipe(8) delivery
+# agent.  See the pipe(8) man page for information about ${recipient}
+# and other message envelope options.
+# ====================================================================
+#
+# maildrop. See the Postfix MAILDROP_README file for details.
+# Also specify in main.cf: maildrop_destination_recipient_limit=1
+#
+maildrop  unix  -       n       n       -       -       pipe
+  flags=DRhu user=vmail argv=/usr/bin/maildrop -d ${recipient}
+#
+# ====================================================================
+#
+# Recent Cyrus versions can use the existing "lmtp" master.cf entry.
+#
+# Specify in cyrus.conf:
+#   lmtp    cmd="lmtpd -a" listen="localhost:lmtp" proto=tcp4
+#
+# Specify in main.cf one or more of the following:
+#  mailbox_transport = lmtp:inet:localhost
+#  virtual_transport = lmtp:inet:localhost
+#
+# ====================================================================
+#
+# Cyrus 2.1.5 (Amos Gouaux)
+# Also specify in main.cf: cyrus_destination_recipient_limit=1
+#
+#cyrus     unix  -       n       n       -       -       pipe
+#  user=cyrus argv=/cyrus/bin/deliver -e -r ${sender} -m ${extension} ${user}
+#
+# ====================================================================
+# Old example of delivery via Cyrus.
+#
+#old-cyrus unix  -       n       n       -       -       pipe
+#  flags=R user=cyrus argv=/cyrus/bin/deliver -e -m ${extension} ${user}
+#
+# ====================================================================
+#
+# See the Postfix UUCP_README file for configuration details.
+#
+uucp      unix  -       n       n       -       -       pipe
+  flags=Fqhu user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail ($recipient)
+#
+# Other external delivery methods.
+#
+ifmail    unix  -       n       n       -       -       pipe
+  flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop ($recipient)
+bsmtp     unix  -       n       n       -       -       pipe
+  flags=Fq. user=bsmtp argv=/usr/lib/bsmtp/bsmtp -t$nexthop -f$sender $recipient
+scalemail-backend unix	-	n	n	-	2	pipe
+  flags=R user=scalemail argv=/usr/lib/scalemail/bin/scalemail-store ${nexthop} ${user} ${extension}
+mailman   unix  -       n       n       -       -       pipe
+  flags=FR user=list argv=/usr/lib/mailman/bin/postfix-to-mailman.py
+  ${nexthop} ${user}
+
+policyd-spf  unix  -       n       n       -       0       spawn
+  user=nobody argv=/usr/bin/policyd-spf /etc/postfix-policyd-spf-python/policyd-spf.conf
diff --git a/postfix/init.sls b/postfix/init.sls
index 5d81da5..aa4f885 100644
--- a/postfix/init.sls
+++ b/postfix/init.sls
@@ -7,6 +7,9 @@ postfix:
     - watch:
       - pkg: postfix
 
+postfix-policyd-spf-python:
+  pkg.installed: []
+
 # manage /etc/aliases if data found in pillar
 {% if 'aliases' in pillar.get('postfix', '') %}
 /etc/aliases: