diff --git a/tasks/communication.yml b/tasks/communication.yml
index e95757b..1b58f7c 100644
--- a/tasks/communication.yml
+++ b/tasks/communication.yml
@@ -11,20 +11,20 @@
       when: "'SMTP0' not in inventory_hostname"
       with_items:
         - { dest: /etc/postfix/main.cf,
-            regexp: "inet_protocols =",
+            regexp: "^.?inet_protocols =",
             line: "inet_protocols = ipv4"
           }
         - { dest: /etc/postfix/main.cf,
-            regexp: "inet_interfaces =",
+            regexp: "^.?inet_interfaces =",
             line: "inet_interfaces = all"
           }
         - { dest: /etc/postfix/main.cf,
-            regexp: "relayhost =",
+            regexp: "^.?relayhost =",
             line: "relayhost = {{ relayhost }}"
           }
         - {
             dest: /etc/postfix/main.cf,
-            regexp: "smtp_randomize_addresses =",
+            regexp: "^.?smtp_randomize_addresses =",
             line: "smtp_randomize_addresses = no"
           }
 
@@ -40,4 +40,4 @@
     dest: ~/.forward
     regexp: "{{ root_email }}"
     line: "{{ root_email }}"
-    create: yes
\ No newline at end of file
+    create: yes