diff --git a/bin/prepare_minion.py b/bin/prepare_minion.py
index 7bddba1..a1f15bd 100755
--- a/bin/prepare_minion.py
+++ b/bin/prepare_minion.py
@@ -28,6 +28,7 @@ file_roots:
     - /srv/salt
     - /srv/formulas/salt-formula
     - /srv/formulas/users-formula
+    - /srv/formulas/postfix-formula
 ''')
 
 os.symlink(mypwd + '/salt', '/srv/salt')
diff --git a/pillar/role/salt/master.sls b/pillar/role/salt/master.sls
index b306637..cafd05d 100644
--- a/pillar/role/salt/master.sls
+++ b/pillar/role/salt/master.sls
@@ -1,4 +1,4 @@
-{%- set formulas = ['salt', 'users'] -%}
+{%- set formulas = ['salt', 'users', 'postfix'] -%}
 
 salt:
   interface: ${'secret_salt:master:interface'}