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.
| Field | Value |
|---|---|
| SMTP Port* | 25 |
| Timeout* | 10 |
| Critical Maximum Remote Service Latency | |
| Warning Maximum Remote Service Latency |