> Services > SMTP Queues Service

SMTP Queues Service

The SMTP Queues service monitors the performance of the SMTP Server based on metrics obtained from the properties:

  • the remote queue length,
  • the local queue length,
  • the current inbound connections, and
  • the current outbound connections.

Service Type


Instances on a Device


Supported Systems/Applications

Any WMI-enabled Server - Windows that has an SMTP service running which reports data through the Win32_PerfRawData_SMTPServer class; for example, Microsoft Exchange

Device Class

Server - Windows

Monitored By

Windows Probes

Scan Interval

15 minutes

SMTP Service Name

An instance of the class Win32_PerfRawData_SMTPSvc_SMTPServe, for example, SMTP1.

Properties Queried and Calculations Performed (WMI only)

Namespace root\cimv2
WMI Class Win32_PerfRawData_SMTPSvc_SMTPServer
WMI Property 0 RemoteQueueLength
WMI Property 1 LocalQueueLength
WMI Property 2 InboundConnectionsCurrent
WMI Property 3 OutboundConnectionsCurrent

Configuring SMTP Service Name

Use the Web Based Enterprise Management (wbemtest) tool in Windows to get the service name to enter in the setup.

  1. Press the Windows Explorer key + R.

    The Run dialog box appears.

  2. Specify wbemtest in the Open field, and press Enter.
  3. Click Connect.
  4. In the first field, specify the namespace: \\<your host name>\root\cimv2 and click Connect.
  5. Click Enum Instances.
  6. In the Enter superclass name field, specify: Win32_PerfRawData_SMTPSvc_SMTPServer, and click OK.
  7. Enter an instance name from the list exactly as it appears, including the case and the spaces, in the SMTP Service Name field in the task properties of the All Devices view on the central server.

Status Details

Status Detail


Number of messages in the remote queue

See Status Detail.

Number of messages in the local queue

See Status Detail.

Number of connections currently inbound

See Status Detail.

Number of connections currently outbound

See Status Detail.