diff --git a/files/update_clients.sh b/files/update_clients.sh
index 6364483..ff43e31 100644
--- a/files/update_clients.sh
+++ b/files/update_clients.sh
@@ -6,9 +6,10 @@ rm /etc/postfix/allowed_clients
 touch /etc/postfix/allowed_clients
 chown postfix.postfix /etc/postfix/allowed_clients
 chmod o-rwx /etc/postfix/allowed_clients
+postmap /etc/postfix/allowed_clients
 
 for client in "${clients[@]}"
 do
     client_ip=$(dig "${client}" | grep -v '^;' |grep "\sA\s" | awk '{print($5)}')
     echo "${client_ip}" >> /etc/postfix/allowed_clients
-done
\ No newline at end of file
+done