Logs for the probe:
time=2026-10-06T08:11:07.109Z level=ERROR source=tcp.go:92 msg="Error dialing TCP" module=smtps target=stalwart.stalwart.svc.cluster.local:465 err="dial tcp4 10.43.12.94:465: connect: operation not permitted"
time=2026-10-06T08:11:07.113Z level=ERROR source=handler.go:130 msg="Probe failed" module=smtps target=stalwart.stalwart.svc.cluster.local:465 duration_seconds=0.006820932



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 0.002349133
# HELP probe_duration_seconds Returns how long the probe took to complete in seconds
# TYPE probe_duration_seconds gauge
probe_duration_seconds 0.006820932
# 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 6.03280892e+08
# HELP probe_ip_protocol Specifies whether probe ip protocol is IP4 or IP6
# TYPE probe_ip_protocol gauge
probe_ip_protocol 4
# HELP probe_success Displays whether or not the probe was a success
# TYPE probe_success gauge
probe_success 0



Module configuration:
prober: tcp
timeout: 20s
http:
  ip_protocol_fallback: true
  follow_redirects: true
  enable_http2: true
tcp:
  preferred_ip_protocol: ip4
  ip_protocol_fallback: true
  query_response:
  - send: "EHLO prober\r"
  - expect: ^250-
  - send: "QUIT\r"
  tls: true
  tls_config:
    insecure_skip_verify: true
icmp:
  ip_protocol_fallback: true
  ttl: 64
dns:
  ip_protocol_fallback: true
  recursion_desired: true