diff --git a/compose.senderlogins.yml b/compose.senderlogins.yml
index aa4d5c4..3e1226f 100644
--- a/compose.senderlogins.yml
+++ b/compose.senderlogins.yml
@@ -5,8 +5,14 @@ services:
     configs:
       - source: sender_logins
         target: /overrides/sender_logins
+      - source: postfix_override
+        target: /overrides/postfix.cf
 
 configs:
   sender_logins:
     name: ${STACK_NAME}_sender_logins_${SENDER_LOGIN_VERSIONS}
     file: sender_logins
+  postfix_override:
+    name: ${STACK_NAME}_postfix_overrides_${POSTFIX_OVERRIDE_VERSION}
+    file: postfix.cf.tmpl
+    template_driver: golang