Update setup_harden_debian_ubuntu.sh

setup_harden_debian_ubuntu.sh

@@ -1419,6 +1419,7 @@ configure_monitoring() {
                 print_error "Failed to send test email. Check /var/log/mail.log for details."
                 exit 1
             fi
+        fi
         log "SMTP monitoring configured."
     else
         print_info "Skipping SMTP monitoring configuration."
@@ -1462,6 +1463,7 @@ EOF
         print_success "Monitoring cron job configured."
     fi
     log "Monitoring configuration completed."
+}
 
 # Install Docker Engine
 install_docker() {