diff --git a/defaults/main.yml b/defaults/main.yml
new file mode 100644
index 0000000..1698072
--- /dev/null
+++ b/defaults/main.yml
@@ -0,0 +1,2 @@
+---
+postfix_compatibility_level: '3.6'
diff --git a/templates/main.cf.j2 b/templates/main.cf.j2
index a2a8460..8d700a5 100644
--- a/templates/main.cf.j2
+++ b/templates/main.cf.j2
@@ -1,4 +1,6 @@
 # {{ ansible_managed }}
+compatibility_level= {{ postfix_compatibility_level }}
+
 # See /usr/share/postfix/main.cf.dist for a commented, more complete version
 
 # Debian specific:  Specifying a file name will cause the first
@@ -44,7 +46,6 @@ home_mailbox = /
 mailbox_size_limit = 0
 #mailbox_command = /usr/bin/procmail -f- -a $USER
 
-compatibility_level=2
 smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination
 
 {% if postfix_sender_relay is defined %}