diff --git a/install_amavis.sh b/install_amavis.sh
index 5bca502..5481b98 100755
--- a/install_amavis.sh
+++ b/install_amavis.sh
@@ -5006,19 +5006,6 @@ EOF
 EOF
       fi
 
-      if ${listen_on_additional_smtp_port} ; then
-         cat >> $postfix_master_cf << EOF
-${additional_smtp_port}      inet  n       -       y       -       -       smtpd
-   -o smtpd_proxy_filter=127.0.0.1:10024
-   -o content_filter=
-EOF
-         if [[ "$SASL_AUTH_ENABLED" = "no" ]] ; then
-            cat >> $postfix_master_cf << EOF
-   -o smtpd_sasl_auth_enable=no
-EOF
-         fi
-      fi
-
 		if ! $submission_present && ! $smtps_present && ! $localhost_10025_present ; then
 					cat >> $postfix_master_cf << EOF
 localhost:10025  inet  n       -       y       -       -       smtpd
@@ -5046,8 +5033,26 @@ EOF
       continue
    fi
 
+   if ${listen_on_additional_smtp_port} \
+      && echo "$_line" | grep -i -E "^\s*${additional_smtp_port}\s+inet" > /dev/null 2>&1 ; then
+      _found=true
+      cat >> $postfix_master_cf << EOF
+${additional_smtp_port}      inet  n       -       y       -       -       smtpd
+   -o smtpd_proxy_filter=127.0.0.1:10024
+   -o content_filter=
+EOF
+      if [[ "$SASL_AUTH_ENABLED" = "no" ]] ; then
+         cat >> $postfix_master_cf << EOF
+   -o smtpd_sasl_auth_enable=no
+EOF
+      fi
 
-	if $submission_present && echo "$_line" | grep -i -E "^^submission\s+" > /dev/null 2>&1 ; then
+      continue
+
+   fi
+
+
+	if $submission_present && echo "$_line" | grep -i -E "^submission\s+" > /dev/null 2>&1 ; then
 		_found=true
 		cat >> $postfix_master_cf << EOF
 submission inet n       -       y       -       20       smtpd