diff --git a/docs/roles/debian/postfix.md b/docs/roles/debian/postfix.md
index e63f3b70a..afd84b496 100644
--- a/docs/roles/debian/postfix.md
+++ b/docs/roles/debian/postfix.md
@@ -22,7 +22,7 @@ postfix:
   networks: "[::1]/128 [::ffff:127.0.0.0]/104 127.0.0.0/8"
   protocols: all
   relayhost: ""
-  transport_maps:
+  transport_maps: # see Postfix manual examples - https://www.postfix.org/transport.5.html
     - "* discard :"
   use_dkim: false
   # AWS SES config - to authenticate with an IAM user see https://docs.aws.amazon.com/ses/latest/dg/smtp-credentials.html
diff --git a/roles/debian/postfix/README.md b/roles/debian/postfix/README.md
index e63f3b70a..afd84b496 100644
--- a/roles/debian/postfix/README.md
+++ b/roles/debian/postfix/README.md
@@ -22,7 +22,7 @@ postfix:
   networks: "[::1]/128 [::ffff:127.0.0.0]/104 127.0.0.0/8"
   protocols: all
   relayhost: ""
-  transport_maps:
+  transport_maps: # see Postfix manual examples - https://www.postfix.org/transport.5.html
     - "* discard :"
   use_dkim: false
   # AWS SES config - to authenticate with an IAM user see https://docs.aws.amazon.com/ses/latest/dg/smtp-credentials.html
diff --git a/roles/debian/postfix/defaults/main.yml b/roles/debian/postfix/defaults/main.yml
index 10e373b83..fb00787d3 100644
--- a/roles/debian/postfix/defaults/main.yml
+++ b/roles/debian/postfix/defaults/main.yml
@@ -11,7 +11,7 @@ postfix:
   networks: "[::1]/128 [::ffff:127.0.0.0]/104 127.0.0.0/8"
   protocols: all
   relayhost: ""
-  transport_maps:
+  transport_maps: # see Postfix manual examples - https://www.postfix.org/transport.5.html
     - "* discard :"
   use_dkim: false
   # AWS SES config - to authenticate with an IAM user see https://docs.aws.amazon.com/ses/latest/dg/smtp-credentials.html
diff --git a/roles/debian/postfix/templates/transport.j2 b/roles/debian/postfix/templates/transport.j2
index 46cfabbdf..eb6e69b27 100644
--- a/roles/debian/postfix/templates/transport.j2
+++ b/roles/debian/postfix/templates/transport.j2
@@ -1,6 +1,6 @@
 {{ ansible_hostname }} :
 {% for transport in postfix.transport_maps %}
 {% if transport|length %}
-{{ transport }} :
+{{ transport }}
 {% endif %}
-{% endfor %}
\ No newline at end of file
+{% endfor %}