diff --git a/templates/postfix/main.cf.j2 b/templates/postfix/main.cf.j2
index 0b6550d..0f68ff0 100644
--- a/templates/postfix/main.cf.j2
+++ b/templates/postfix/main.cf.j2
@@ -84,9 +84,12 @@ virtual_transport =
 {% endfor %}
 {% endif %}
 
-{% if postfix_relay_domains is defined and postfix_relay_domains %}
+{% if postfix_relay_domains is defined %}
 # Relay mails without recipient check
-relay_domains = cdb:{{ postfix_conf_dir }}/relay_domains
+relay_domains =
+{% for map in postfix_relay_domains %}
+    {{ map.type}}:{{ map.path }}
+{% endfor %}
 {% endif %}
 {% if postfix_sender_dependent_relayhost_maps is defined %}
 sender_dependent_relayhost_maps =