Thank you for all yours help. With debug command: curl 'localhost:9115/probe?target=smtp.google.com:25&module=smtp_starttls&debug=true'
I found problem. Problem was because in prometheus.yml I was set only hostname without port number. caller=tcp.go:37 module=smtp_starttls target=my_mail_server level=error msg="Error splitting target address and port" err="address my_mail_server: missing port in address" When I add port prober works. Thanks again ! Cheers. On Tuesday, 20 October 2020 at 11:53:58 UTC+2 [email protected] wrote: > Oh, there's a much way to get the debug output, which is to add > &debug=true to the URL. > > curl > 'localhost:9115/probe?target=smtp.google.com:25&module=smtp_starttls&debug=true' > > -- You received this message because you are subscribed to the Google Groups "Prometheus Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/prometheus-users/5244ff4e-5341-4c80-8421-1492b3decab0n%40googlegroups.com.

