C.8.4. Network Services::Mail Transfer (SMTP)

The Network Services::Mail Transfer (SMTP) probe determines if it can connect to the SMTP port on the system. Specifying an optional port number overrides the default port 25. It collects the following metric:

Remote Service Latency — The time it takes in seconds for the SMTP server to answer a connection request.

Table C.40. Network Services::Mail Transfer (SMTP) settings
Field	Value
SMTP Port*	25
Timeout*	10
Critical Maximum Remote Service Latency
Warning Maximum Remote Service Latency

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