diff --git a/docker/postfix/etc/saslauthd.conf b/docker/postfix/etc/saslauthd.conf
new file mode 100644
index 0000000000000000000000000000000000000000..93bfa2f1814b0b825e74a611b4198c47e1fc9c7d
--- /dev/null
+++ b/docker/postfix/etc/saslauthd.conf
@@ -0,0 +1,7 @@
+ldap_servers: LDAP_HOST
+ldap_search_base: LDAP_SEARCH_BASE
+ldap_filter: LDAP_FILTER
+ldap_auth_method: custom
+ 
+ldap_bind_dn: LDAP_BIND_DN
+ldap_password: LDAP_BIND_PASSWORD