Could you first just try copy-pasting the working config I gave you, and see if it gives a different result to yours?
I doubt a mail server would take more than 5 seconds to give a banner, but it's possible. Simply doing "telnet x.x.x.x 25" will show you how your mail server behaves. On Monday, 4 July 2022 at 11:14:23 UTC+1 [email protected] wrote: > > Yes in my code the first expect is quoted. > > smtp_starttls: > prober: tcp > timeout: 5s > tcp: > query_response: > - expect: "^220 ([^ ]+) ESMTP (.+)$" > - send: "EHLO prober\r" > - expect: "^250-STARTTLS" > - send: "STARTTLS\r" > - expect: "^220" > - starttls: true > - send: "EHLO prober\r" > - expect: "^250-AUTH" > - send: "QUIT\r" > > Probably due to the "timeout" is too less? Should I adjust 5s to 15s or > 60s? > On Monday, July 4, 2022 at 5:55:09 PM UTC+8 Brian Candler wrote: > >> The following works for me with blackbox_exporter 0.21.0 (maybe your >> first 'expect' regexp needs to be quoted?) >> >> modules: >> smtp_starttls: >> prober: tcp >> timeout: 5s >> tcp: >> query_response: >> - expect: "^220 ([^ ]+) ESMTP (.+)$" >> send: "EHLO prober" >> - expect: "^250-STARTTLS" >> - expect: "^250 .*$" >> send: "STARTTLS" >> - expect: "^220" >> >> starttls: true >> - send: "EHLO prober" >> - expect: "^250 .*$" >> send: "QUIT" >> >> Result: >> >> # *curl -g >> 'localhost:9115/probe?module=smtp_starttls&target=aspmx.l.google.com:25&debug=true'* >> Logs for the probe: >> ts=2022-07-04T09:50:46.764604425Z caller=main.go:351 module=smtp_starttls >> target=aspmx.l.google.com:25 level=info msg="Beginning probe" probe=tcp >> timeout_seconds=5 >> ts=2022-07-04T09:50:46.764875668Z caller=tcp.go:40 module=smtp_starttls >> target=aspmx.l.google.com:25 level=info msg="Resolving target address" >> target=aspmx.l.google.com ip_protocol=ip6 >> ts=2022-07-04T09:50:46.765954096Z caller=tcp.go:40 module=smtp_starttls >> target=aspmx.l.google.com:25 level=info msg="Resolved target address" >> target=aspmx.l.google.com ip=2a00:1450:400c:c07::1b >> ts=2022-07-04T09:50:46.766011111Z caller=tcp.go:121 module=smtp_starttls >> target=aspmx.l.google.com:25 level=info msg="Dialing TCP without TLS" >> ts=2022-07-04T09:50:46.776962616Z caller=main.go:144 module=smtp_starttls >> target=aspmx.l.google.com:25 level=info msg="Successfully dialed" >> ts=2022-07-04T09:50:46.77708032Z caller=main.go:144 module=smtp_starttls >> target=aspmx.l.google.com:25 level=info msg="Processing query response >> entry" entry_number=0 >> ts=2022-07-04T09:50:46.788075017Z caller=main.go:144 module=smtp_starttls >> target=aspmx.l.google.com:25 level=debug msg="Read line" line="220 >> mx.google.com ESMTP u1-20020a056000038100b0021bbcef3a69si36572085wrf.542 >> - gsmtp" >> ts=2022-07-04T09:50:46.788168204Z caller=main.go:144 module=smtp_starttls >> target=aspmx.l.google.com:25 level=info msg="Regexp matched" >> regexp="^220 ([^ ]+) ESMTP (.+)$" line="220 mx.google.com ESMTP >> u1-20020a056000038100b0021bbcef3a69si36572085wrf.542 - gsmtp" >> ts=2022-07-04T09:50:46.788223914Z caller=main.go:144 module=smtp_starttls >> target=aspmx.l.google.com:25 level=debug msg="Sending line" line="EHLO >> prober" >> ts=2022-07-04T09:50:46.788362926Z caller=main.go:144 module=smtp_starttls >> target=aspmx.l.google.com:25 level=info msg="Processing query response >> entry" entry_number=1 >> ts=2022-07-04T09:50:46.801755535Z caller=main.go:144 module=smtp_starttls >> target=aspmx.l.google.com:25 level=debug msg="Read line" line=" >> 250-mx.google.com at your service, [xx:xx:xx:xx::33]" >> ts=2022-07-04T09:50:46.801856147Z caller=main.go:144 module=smtp_starttls >> target=aspmx.l.google.com:25 level=debug msg="Read line" line="250-SIZE >> 157286400" >> ts=2022-07-04T09:50:46.801889927Z caller=main.go:144 module=smtp_starttls >> target=aspmx.l.google.com:25 level=debug msg="Read line" >> line=250-8BITMIME >> ts=2022-07-04T09:50:46.801922312Z caller=main.go:144 module=smtp_starttls >> target=aspmx.l.google.com:25 level=debug msg="Read line" >> line=250-STARTTLS >> ts=2022-07-04T09:50:46.801955499Z caller=main.go:144 module=smtp_starttls >> target=aspmx.l.google.com:25 level=info msg="Regexp matched" >> regexp=^250-STARTTLS line=250-STARTTLS >> ts=2022-07-04T09:50:46.801989646Z caller=main.go:144 module=smtp_starttls >> target=aspmx.l.google.com:25 level=info msg="Processing query response >> entry" entry_number=2 >> ts=2022-07-04T09:50:46.802029066Z caller=main.go:144 module=smtp_starttls >> target=aspmx.l.google.com:25 level=debug msg="Read line" >> line=250-ENHANCEDSTATUSCODES >> ts=2022-07-04T09:50:46.802063318Z caller=main.go:144 module=smtp_starttls >> target=aspmx.l.google.com:25 level=debug msg="Read line" >> line=250-PIPELINING >> ts=2022-07-04T09:50:46.802094713Z caller=main.go:144 module=smtp_starttls >> target=aspmx.l.google.com:25 level=debug msg="Read line" >> line=250-CHUNKING >> ts=2022-07-04T09:50:46.802126198Z caller=main.go:144 module=smtp_starttls >> target=aspmx.l.google.com:25 level=debug msg="Read line" line="250 >> SMTPUTF8" >> ts=2022-07-04T09:50:46.802159858Z caller=main.go:144 module=smtp_starttls >> target=aspmx.l.google.com:25 level=info msg="Regexp matched" >> regexp="^250 .*$" line="250 SMTPUTF8" >> ts=2022-07-04T09:50:46.802191065Z caller=main.go:144 module=smtp_starttls >> target=aspmx.l.google.com:25 level=debug msg="Sending line" line=STARTTLS >> ts=2022-07-04T09:50:46.802271697Z caller=main.go:144 module=smtp_starttls >> target=aspmx.l.google.com:25 level=info msg="Processing query response >> entry" entry_number=3 >> ts=2022-07-04T09:50:46.812211682Z caller=main.go:144 module=smtp_starttls >> target=aspmx.l.google.com:25 level=debug msg="Read line" line="220 2.0.0 >> Ready to start TLS" >> ts=2022-07-04T09:50:46.812279339Z caller=main.go:144 module=smtp_starttls >> target=aspmx.l.google.com:25 level=info msg="Regexp matched" regexp=^220 >> line="220 2.0.0 Ready to start TLS" >> ts=2022-07-04T09:50:46.833573801Z caller=main.go:144 module=smtp_starttls >> target=aspmx.l.google.com:25 level=info msg="TLS Handshake (client) >> succeeded." >> ts=2022-07-04T09:50:46.833793385Z caller=main.go:144 module=smtp_starttls >> target=aspmx.l.google.com:25 level=info msg="Processing query response >> entry" entry_number=4 >> ts=2022-07-04T09:50:46.833838422Z caller=main.go:144 module=smtp_starttls >> target=aspmx.l.google.com:25 level=debug msg="Sending line" line="EHLO >> prober" >> ts=2022-07-04T09:50:46.833960852Z caller=main.go:144 module=smtp_starttls >> target=aspmx.l.google.com:25 level=info msg="Processing query response >> entry" entry_number=5 >> ts=2022-07-04T09:50:46.84464181Z caller=main.go:144 module=smtp_starttls >> target=aspmx.l.google.com:25 level=debug msg="Read line" line=" >> 250-mx.google.com at your service, [xx:xx:xx:xx::33]" >> ts=2022-07-04T09:50:46.844771942Z caller=main.go:144 module=smtp_starttls >> target=aspmx.l.google.com:25 level=debug msg="Read line" line="250-SIZE >> 157286400" >> ts=2022-07-04T09:50:46.844839074Z caller=main.go:144 module=smtp_starttls >> target=aspmx.l.google.com:25 level=debug msg="Read line" >> line=250-8BITMIME >> ts=2022-07-04T09:50:46.844910271Z caller=main.go:144 module=smtp_starttls >> target=aspmx.l.google.com:25 level=debug msg="Read line" >> line=250-ENHANCEDSTATUSCODES >> ts=2022-07-04T09:50:46.844974538Z caller=main.go:144 module=smtp_starttls >> target=aspmx.l.google.com:25 level=debug msg="Read line" >> line=250-PIPELINING >> ts=2022-07-04T09:50:46.845061058Z caller=main.go:144 module=smtp_starttls >> target=aspmx.l.google.com:25 level=debug msg="Read line" >> line=250-CHUNKING >> ts=2022-07-04T09:50:46.84512579Z caller=main.go:144 module=smtp_starttls >> target=aspmx.l.google.com:25 level=debug msg="Read line" line="250 >> SMTPUTF8" >> ts=2022-07-04T09:50:46.845193403Z caller=main.go:144 module=smtp_starttls >> target=aspmx.l.google.com:25 level=info msg="Regexp matched" >> regexp="^250 .*$" line="250 SMTPUTF8" >> ts=2022-07-04T09:50:46.84525809Z caller=main.go:144 module=smtp_starttls >> target=aspmx.l.google.com:25 level=debug msg="Sending line" line=QUIT >> ts=2022-07-04T09:50:46.845583228Z caller=main.go:351 module=smtp_starttls >> target=aspmx.l.google.com:25 level=info msg="Probe succeeded" >> duration_seconds=0.080912196 >> >> >> >> >> Metrics that would have been returned: >> # HELP probe_dns_lookup_time_seconds Returns the time taken for probe dns >> lookup in seconds >> # TYPE probe_dns_lookup_time_seconds gauge >> probe_dns_lookup_time_seconds 0.001103057 >> >> # HELP probe_duration_seconds Returns how long the probe took to complete >> in seconds >> # TYPE probe_duration_seconds gauge >> probe_duration_seconds 0.080912196 >> >> # HELP probe_failed_due_to_regex Indicates if probe failed due to regex >> # TYPE probe_failed_due_to_regex gauge >> probe_failed_due_to_regex 0 >> # HELP probe_ip_addr_hash Specifies the hash of IP address. It's useful >> to detect if the IP address changes. >> # TYPE probe_ip_addr_hash gauge >> probe_ip_addr_hash 2.766777767e+09 >> >> # HELP probe_ip_protocol Specifies whether probe ip protocol is IP4 or IP6 >> # TYPE probe_ip_protocol gauge >> probe_ip_protocol 6 >> # HELP probe_ssl_earliest_cert_expiry Returns earliest SSL cert expiry >> date >> # TYPE probe_ssl_earliest_cert_expiry gauge >> probe_ssl_earliest_cert_expiry 1.661764429e+09 >> # HELP probe_ssl_last_chain_expiry_timestamp_seconds Returns last SSL >> chain expiry in unixtime >> # TYPE probe_ssl_last_chain_expiry_timestamp_seconds gauge >> probe_ssl_last_chain_expiry_timestamp_seconds 1.661764429e+09 >> >> # HELP probe_success Displays whether or not the probe was a success >> # TYPE probe_success gauge >> probe_success 1 >> >> >> >> >> Module configuration: >> prober: tcp >> timeout: 5s >> http: >> ip_protocol_fallback: true >> follow_redirects: true >> enable_http2: true >> >> tcp: >> ip_protocol_fallback: true >> query_response: >> - expect: ^220 ([^ ]+) ESMTP (.+)$ >> send: EHLO prober >> - expect: ^250-STARTTLS >> - expect: ^250 .*$ >> send: STARTTLS >> - expect: ^220 >> >> starttls: true >> - send: EHLO prober >> - expect: ^250 .*$ >> send: QUIT >> >> icmp: >> ip_protocol_fallback: true >> dns: >> ip_protocol_fallback: true >> recursion_desired: true >> > -- You received this message because you are subscribed to the Google Groups "Prometheus Users" group. 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