diff --git a/templates/main.cf.j2 b/templates/main.cf.j2
index 0512afe..01254ba 100644
--- a/templates/main.cf.j2
+++ b/templates/main.cf.j2
@@ -74,3 +74,4 @@ virtual_transport = lmtp:unix:private/dovecot-lmtp
 
 smtpd_sasl_type = dovecot
 smtpd_sasl_path = private/auth
+smtpd_sasl_auth_enable = yes