diff --git a/assets/install.sh b/assets/install.sh
index 0b2aaff..6605496 100755
--- a/assets/install.sh
+++ b/assets/install.sh
@@ -66,6 +66,8 @@ if [[ -n "$(find /etc/postfix/certs -iname *.crt)" && -n "$(find /etc/postfix/ce
   postconf -P "submission/inet/smtpd_sasl_auth_enable=yes"
   postconf -P "submission/inet/milter_macro_daemon_name=ORIGINATING"
   postconf -P "submission/inet/smtpd_recipient_restrictions=permit_sasl_authenticated,reject_unauth_destination"
+else
+  postconf -e smtpd_use_tls=no
 fi
 
 #############
@@ -127,4 +129,4 @@ cat >> /etc/opendkim/SigningTable <<EOF
 *@$maildomain mail._domainkey.$maildomain
 EOF
 chown opendkim:opendkim $(find /etc/opendkim/domainkeys -iname *.private)
-chmod 400 $(find /etc/opendkim/domainkeys -iname *.private)
\ No newline at end of file
+chmod 400 $(find /etc/opendkim/domainkeys -iname *.private)