diff --git a/README.md b/README.md
index 5d67a15..4a4780b 100644
--- a/README.md
+++ b/README.md
@@ -40,3 +40,13 @@ You can select via the variable `postfix_type` a pre-defined set of configuraion
 | `postfix_submission_smtpd_tls_key_file` | string | | Path to TLS key file |
 | `postfix_submission_non_tls_port` | int | | Port number for an additional (internal) submission port without TLS |
 
+### Scope: SASL Auth
+
+| Variable | Value | Default | Note |
+|--|--|--|--|
+| `postfix_smtpd_sasl_type` | string | | |
+| `postfix_smtpd_sasl_path` | string | | |
+| `postfix_smtp_sasl_auth_enable` | bool | `no` | |
+| `smtp_sasl_password_maps.type` | string | | Database type |
+| `smtp_sasl_password_maps.map` | string | | File path |
+