Exchange Queues Test

A queue is a temporary holding location for messages that are waiting to enter the next stage of processing. Each queue represents a logical set of messages that an Exchange transport server processes in a specific order. Queues exist only on computers that have the Hub Transport server role or Edge Transport server role installed.

This test reports the length of each message queue on the Microsoft Exchange Edge Transport server or the Microsoft Exchange Hub Transport server, so that queues experiencing processing bottlenecks can be accurately identified.,

Target of the test : A server configured with the Hub Transport role

Agent deploying the test : An internal agent

Outputs of the test : One set of results for every queue on the Hub/Edge Transport server being monitored.

Configurable parameters for the test
Parameters Description

Test Period

How often should the test be executed.


Indicates the IP address of the Hub Transport server.


The port number of the Hub Transport server. By default, this is 691.


The Exchange Management Shell is a command-line management interface, built on Windows PowerShell which enables you to administer every part of Microsoft Exchange. This test uses the Exchange management shell to run scripts and collect the desired performance metrics from the Exchange server. By default, the test auto-discovers the location of the Exchange management shell and thus, automatically loads the Exchange management shell snap-in (exshell.psc1) for script execution. This is why, the XchgExtensionShellPath is set to none by default.

Detailed Diagnosis

To make diagnosis more efficient and accurate, the eG Enterprise embeds an optional detailed diagnostic capability. With this capability, the eG agents can be configured to run detailed, more elaborate tests as and when specific problems are detected. To enable the detailed diagnosis capability of this test for a particular server, choose the On option. To disable the capability, click on the Off option.

The option to selectively enable/disable the detailed diagnosis capability will be available only if the following conditions are fulfilled:

  • The eG manager license should allow the detailed diagnosis capability
  • Both the normal and abnormal frequencies configured for the detailed diagnosis measures should not be 0.
Measurements made by the test
Measurement Description Measurement Unit Interpretation

Messages in queue

Indicates the number of messages currently found in this queue.


A high number could indicate a processing bottleneck in the queue.