diff --git a/public/ispmail.sh b/public/ispmail.sh
index e9f2ff9..79c741d 100755
--- a/public/ispmail.sh
+++ b/public/ispmail.sh
@@ -18,7 +18,12 @@
 #
 # Version 0.4 / 2026-08-01
 # Add smtpd_sender_login_maps to allow sending as an alias address.
-# Add rspamd's allow_username_mismatch to enable DKIM signing when sending as an alias.
+# Add rspamd's allow_username_mismatch to enable DKIM signing when sending as
+# an alias.
+#
+# Version 0.5 / 2026-08-03
+# Calling swaks with --tlso instead of --tls to make the script idempotent.
+# Making sure that inet_interfaces=all
 #
 
 usage() {