diff --git a/cookbooks/fb_postfix/attributes/default.rb b/cookbooks/fb_postfix/attributes/default.rb
index 02a7d00fe..2f1c0bce2 100644
--- a/cookbooks/fb_postfix/attributes/default.rb
+++ b/cookbooks/fb_postfix/attributes/default.rb
@@ -15,18 +15,11 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-default['fb_postfix'] = {
-  'enable' => true,
-  'mask_service' => false,
-  'aliases' => {},
-  'access' => {},
-  'canonical' => {},
-  'etrn_access' => {
-    '127.0.0.1' => 'OK',
+main_cf = value_for_platform_family(
+  'debian' => {
+    'compatibility_level' => '3.6',
   },
-  'local_access' => {},
-  'localdomains' => [],
-  'main.cf' => {
+  'default' => {
     'daemon_directory' => '/usr/libexec/postfix',
     'queue_directory' => '/var/spool/postfix',
     'mail_owner' => 'postfix',
@@ -107,6 +100,21 @@
     # Postfix will interpret this to be hostname
     'smtp_helo_name' => '$myhostname',
   },
+)
+
+default['fb_postfix'] = {
+  'enable' => true,
+  'mask_service' => false,
+  'aliases' => {},
+  'access' => {},
+  'canonical' => {},
+  'etrn_access' => {
+    '127.0.0.1' => 'OK',
+  },
+  'local_access' => {},
+  'localdomains' => [],
+  # will be a symlink to the right arch dir
+  'main.cf' => main_cf,
   # master.cf as per http://www.postfix.org/master.5.html
   # In master.cf, unique by service:type and not just service.
   'master.cf' => {
diff --git a/cookbooks/fb_postfix/metadata.rb b/cookbooks/fb_postfix/metadata.rb
index c0ec2e0dd..d79b6df66 100644
--- a/cookbooks/fb_postfix/metadata.rb
+++ b/cookbooks/fb_postfix/metadata.rb
@@ -6,4 +6,8 @@
 description 'Installs/Configures postfix'
 source_url 'https://github.com/facebook/chef-cookbooks/'
 supports 'centos'
+supports 'debian'
+supports 'oracle'
+supports 'redhat'
+supports 'ubuntu'
 version '0.0.1'