diff --git a/charts/mail-relay/0.2.0/templates/configmap.yaml b/charts/mail-relay/0.2.0/templates/configmap.yaml
index 9c14b6f..b20e102 100644
--- a/charts/mail-relay/0.2.0/templates/configmap.yaml
+++ b/charts/mail-relay/0.2.0/templates/configmap.yaml
@@ -12,3 +12,7 @@ data:
     postmap lmdb:/etc/postfix/transport
     postconf -e "transport_maps = lmdb:/etc/postfix/transport"
     postmap lmdb:/etc/postfix/sasl_passwd
+    postconf -e "smtp_sasl_password_maps = lmdb:/etc/postfix/sasl_passwd"
+    postconf -e "smtp_sasl_auth_enable = yes"
+    postconf -e "smtp_sasl_security_options = noanonymous"
+    postconf -e "smtp_sasl_type = cyrus"