diff --git a/data/conf/postfix/master.cf b/data/conf/postfix/master.cf
index 224c74ab..79642f6d 100644
--- a/data/conf/postfix/master.cf
+++ b/data/conf/postfix/master.cf
@@ -1,6 +1,7 @@
 smtp       inet  n       -       n       -       1       postscreen
 smtpd      pass  -       -       n       -       -       smtpd
   -o smtpd_helo_restrictions=permit_mynetworks,reject_non_fqdn_helo_hostname
+  -o smtpd_sasl_auth_enable=no
 smtps    inet  n       -       n       -       -       smtpd
   -o smtpd_tls_wrappermode=yes
   -o smtpd_client_restrictions=permit_mynetworks,permit_sasl_authenticated,reject