diff --git a/Forward-Only-mailserver-with-LDAP-authentication.md b/Forward-Only-mailserver-with-LDAP-authentication.md
index 3ab795f..90c86ee 100644
--- a/Forward-Only-mailserver-with-LDAP-authentication.md
+++ b/Forward-Only-mailserver-with-LDAP-authentication.md
@@ -97,3 +97,5 @@ You see that besides `query_filter`, I had to customize as well `result_attribut
 For more details about using LDAP see: [LDAP managed mail server with Postfix and Dovecot for multiple domains](https://www.vennedey.net/resources/2-LDAP-managed-mail-server-with-Postfix-and-Dovecot-for-multiple-domains)
 
 Another solution that serves as a forward-only mailserver is this: https://gitlab.com/docker-scripts/postfix
+
+For me it worked only when `ENABLE_LDAP=0` was set. (Jaap D)
\ No newline at end of file