diff --git a/exim/config/file.sls b/exim/config/file.sls
index d26308d..7ae9af2 100644
--- a/exim/config/file.sls
+++ b/exim/config/file.sls
@@ -4,7 +4,7 @@
 {#- Get the `tplroot` from `tpldir` #}
 {%- set tplroot = tpldir.split('/')[0] %}
 {%- set sls_package_install = tplroot ~ '.package.install' %}
-{%- from tplroot ~ "/map.jinja" import map with context %}
+{%- from tplroot ~ "/map.jinja" import exim with context %}
 
 {% set use_split_config  = salt['pillar.get']('exim:config:use_split_config', 'true') %}
 {% set configtype        = salt['pillar.get']('exim:config:configtype', 'satellite') %}
@@ -20,7 +20,7 @@
 {% set smarthost         = salt['pillar.get']('exim:config:smarthost', '') %}
 {% set cfilemode         = salt['pillar.get']('exim:config:cfilemode', '644') %}
 
-{{ map.config_dir }}/{{ map.config_file }}:
+{{ exim.config_dir }}/{{ exim.config_file }}:
   file.managed:
     - contents: |
         dc_eximconfig_configtype='{{ configtype }}'
@@ -38,9 +38,9 @@
         CFILEMODE='{{ cfilemode }}'
 
 {% if salt['pillar.get']('exim:files') %}
-{% for dir in map.sub_dirs %}
+{% for dir in exim.sub_dirs %}
   {% for file in salt['pillar.get']('exim:files:' + dir, {}) %}
-{{ map.config_dir }}/conf.d/{{ dir }}/{{ file }}:
+{{ exim.config_dir }}/conf.d/{{ dir }}/{{ file }}:
   file.managed:
     - contents_pillar: exim:files:{{ dir }}:{{ file }}
   {% endfor %}
diff --git a/exim/defaults.yaml b/exim/defaults.yaml
new file mode 100644
index 0000000..5f479fc
--- /dev/null
+++ b/exim/defaults.yaml
@@ -0,0 +1,4 @@
+# -*- coding: utf-8 -*-
+# vim: ft=yaml
+---
+exim: {}
diff --git a/exim/map.jinja b/exim/map.jinja
index 266c7c4..554a818 100644
--- a/exim/map.jinja
+++ b/exim/map.jinja
@@ -1,9 +1,49 @@
-{% set map = salt['grains.filter_by']({
-    'Debian': {
-        'pkgs': ['exim4-daemon-light'],
-        'service': 'exim4',
-        'config_dir': '/etc/exim4',
-        'config_file': 'update-exim4.conf.conf',
-        'sub_dirs': ['main', 'acl', 'router', 'transport', 'retry', 'rewrite', 'auth'],
-    },
-}, grain='os', merge=salt['pillar.get']('exim:lookup'), default='Debian') %}
+# -*- coding: utf-8 -*-
+# vim: ft=jinja
+
+{#- Get the `tplroot` from `tpldir` #}
+{%- set tplroot = tpldir.split('/')[0] %}
+{#- Start imports as #}
+{%- import_yaml tplroot ~ "/defaults.yaml" as default_settings %}
+{%- import_yaml tplroot ~ "/osarchmap.yaml" as osarchmap %}
+{%- import_yaml tplroot ~ "/osfamilymap.yaml" as osfamilymap %}
+{%- import_yaml tplroot ~ "/osmap.yaml" as osmap %}
+{%- import_yaml tplroot ~ "/osfingermap.yaml" as osfingermap %}
+
+{#- Retrieve the config dict only once #}
+{%- set _config = salt['config.get'](tplroot, default={}) %}
+
+{%- set defaults = salt['grains.filter_by'](
+      default_settings,
+      default=tplroot,
+      merge=salt['grains.filter_by'](
+        osarchmap,
+        grain='osarch',
+        merge=salt['grains.filter_by'](
+          osfamilymap,
+          grain='os_family',
+          merge=salt['grains.filter_by'](
+            osmap,
+            grain='os',
+            merge=salt['grains.filter_by'](
+              osfingermap,
+              grain='osfinger',
+              merge=salt['grains.filter_by'](
+                _config,
+                default='lookup'
+              )
+            )
+          )
+        )
+      )
+    )
+%}
+
+{%- set config = salt['grains.filter_by'](
+      {'defaults': defaults},
+      default='defaults',
+      merge=_config
+    )
+%}
+
+{%- set exim = config %}
diff --git a/exim/osarchmap.yaml b/exim/osarchmap.yaml
new file mode 100644
index 0000000..ab3bc1f
--- /dev/null
+++ b/exim/osarchmap.yaml
@@ -0,0 +1,35 @@
+# -*- coding: utf-8 -*-
+# vim: ft=yaml
+#
+# Setup variables using grains['osarch'] based logic.
+# You just need to add the key:values for an `osarch` that differ
+# from `defaults.yaml`.
+# Only add an `osarch` which is/will be supported by the formula.
+#
+# If you do not need to provide defaults via the `osarch` grain,
+# you will need to provide at least an empty dict in this file, e.g.
+# osarch: {}
+---
+amd64:
+  arch: amd64
+
+x86_64:
+  arch: amd64
+
+386:
+  arch: 386
+
+arm64:
+  arch: arm64
+
+armv6l:
+  arch: armv6l
+
+armv7l:
+  arch: armv7l
+
+ppc64le:
+  arch: ppc64le
+
+s390x:
+  arch: s390x
diff --git a/exim/osfamilymap.yaml b/exim/osfamilymap.yaml
new file mode 100644
index 0000000..9319e7f
--- /dev/null
+++ b/exim/osfamilymap.yaml
@@ -0,0 +1,26 @@
+# -*- coding: utf-8 -*-
+# vim: ft=yaml
+#
+# Setup variables using grains['os_family'] based logic.
+# You just need to add the key:values for an `os_family` that differ
+# from `defaults.yaml` + `osarch.yaml`.
+# Only add an `os_family` which is/will be supported by the formula.
+#
+# If you do not need to provide defaults via the `os_family` grain,
+# you will need to provide at least an empty dict in this file, e.g.
+# osfamilymap: {}
+---
+Debian:
+  pkgs:
+    - exim4-daemon-light
+  service: exim4
+  config_dir: /etc/exim4
+  config_file: update-exim4.conf.conf
+  sub_dirs:
+    - main
+    - acl
+    - router
+    - transport
+    - retry
+    - rewrite
+    - auth
diff --git a/exim/osfingermap.yaml b/exim/osfingermap.yaml
new file mode 100644
index 0000000..221bedf
--- /dev/null
+++ b/exim/osfingermap.yaml
@@ -0,0 +1,13 @@
+# -*- coding: utf-8 -*-
+# vim: ft=yaml
+#
+# Setup variables using grains['osfinger'] based logic.
+# You just need to add the key:values for an `osfinger` that differ
+# from `defaults.yaml` + `osarch.yaml` + `os_family.yaml` + `osmap.yaml`.
+# Only add an `osfinger` which is/will be supported by the formula.
+#
+# If you do not need to provide defaults via the `os_finger` grain,
+# you will need to provide at least an empty dict in this file, e.g.
+# osfingermap: {}
+---
+osfingermap: {}
diff --git a/exim/osmap.yaml b/exim/osmap.yaml
new file mode 100644
index 0000000..2ec94b4
--- /dev/null
+++ b/exim/osmap.yaml
@@ -0,0 +1,13 @@
+# -*- coding: utf-8 -*-
+# vim: ft=yaml
+#
+# Setup variables using grains['os'] based logic.
+# You just need to add the key:values for an `os` that differ
+# from `defaults.yaml` + `osarch.yaml` + `os_family.yaml`.
+# Only add an `os` which is/will be supported by the formula.
+#
+# If you do not need to provide defaults via the `os` grain,
+# you will need to provide at least an empty dict in this file, e.g.
+# osmap: {}
+---
+osmap: {}
diff --git a/exim/package/install.sls b/exim/package/install.sls
index d7c237f..e6668a1 100644
--- a/exim/package/install.sls
+++ b/exim/package/install.sls
@@ -3,8 +3,8 @@
 
 {#- Get the `tplroot` from `tpldir` #}
 {%- set tplroot = tpldir.split('/')[0] %}
-{%- from tplroot ~ "/map.jinja" import map with context %}
+{%- from tplroot ~ "/map.jinja" import exim with context %}
 
 exim/package/install:
   pkg.installed:
-    - pkgs: {{ map.pkgs | json }}
+    - pkgs: {{ exim.pkgs | json }}
diff --git a/exim/service/running.sls b/exim/service/running.sls
index 2153daa..8b08a3a 100644
--- a/exim/service/running.sls
+++ b/exim/service/running.sls
@@ -4,14 +4,14 @@
 {#- Get the `tplroot` from `tpldir` #}
 {%- set tplroot = tpldir.split('/')[0] %}
 {%- set sls_config_file = tplroot ~ '.config.file' %}
-{%- from tplroot ~ "/map.jinja" import map with context %}
+{%- from tplroot ~ "/map.jinja" import exim with context %}
 
 include:
   - {{ sls_config_file }}
 
 exim/service/running:
   service.running:
-    - name: {{ map.service }}
+    - name: {{ exim.service }}
     - enable: true
     - require:
       - sls: {{ sls_config_file }}