diff --git a/install_postfix_advanced.sh b/install_postfix_advanced.sh
index 38d613a..b604ac4 100755
--- a/install_postfix_advanced.sh
+++ b/install_postfix_advanced.sh
@@ -360,7 +360,7 @@ if $IS_RELAY_HOST ; then
 
    if [[ "$IS_SYMPA_LIST_SERVER" = 'yes' || "$IS_SYMPA_LIST_SERVER" = 'true' ]] ; then
       IS_SYMPA_LIST_SERVER=true
-      SASL_AUTH_ENABLED=yes
+      SASL_AUTH_ENABLED=no
    else
       IS_SYMPA_LIST_SERVER=false
    fi