diff --git a/postfix/conf/main.cf b/postfix/conf/main.cf
index 83d5c7a2..049953a6 100644
--- a/postfix/conf/main.cf
+++ b/postfix/conf/main.cf
@@ -14,7 +14,7 @@ message_size_limit = {{ MESSAGE_SIZE_LIMIT }}
 mynetworks = 127.0.0.1/32 [::1]/128 {{ RELAYNETS }}
 
 # Empty alias list to override the configuration variable and disable NIS
-alias_maps = hash:/etc/aliases
+alias_maps =
 
 # SQLite configuration
 sql = sqlite:${config_directory}/