diff --git a/postfix.cf.tmpl b/postfix.cf.tmpl
index 86b1153..38630f1 100644
--- a/postfix.cf.tmpl
+++ b/postfix.cf.tmpl
@@ -4,17 +4,11 @@
 
 # Please note, this config assumes "recipient_delimiter = +" in the main.cf
 # and transport_maps/relay_domains preserve the overriden postfix.cf config values
+# and finally, we use single lines configuration definitions because:
+# https://github.com/Mailu/Mailu/pull/1806/files#diff-55df9d2f8b8d40391d9d451a1e8155292465d48c52e78dd34655be834cd3dc9fR264-R266
 
 unknown_local_recipient_reject_code = 550
 owner_request_special = no
-
-transport_maps =
-    ${podop}transport
-    regexp:/opt/mailman/core/var/data/postfix_lmtp
-
-local_recipient_maps =
-    regexp:/opt/mailman/core/var/data/postfix_lmtp
-
-relay_domains =
-    ${podop}transport
-    regexp:/opt/mailman/core/var/data/postfix_domains
+transport_maps = ${podop}transport regexp:/opt/mailman/core/var/data/postfix_lmtp
+local_recipient_maps = regexp:/opt/mailman/core/var/data/postfix_lmtp
+relay_domains = ${podop}transport regexp:/opt/mailman/core/var/data/postfix_domains