Delivery Component Latencies Test

One/more latent delivery components can stall email delivery to user mailboxes for long hours. In mission-critical environments, such unprecedented time lags in email delivery can increase user frustration, impact productivity, affect revenues, and escalate costs. To avoid this, administrators should closely monitor how much time each component engaged in email delivery is spending on processing the mail messages, and where the bottleneck is. The Delivery Component Latencies test helps with this. For each component engaged in email delivery, this test reports the maximum time that component took to process email messages 90%, 95%, and 99% of the time. This way, the test points to the highly latent components that could be disrupting email delivery.

Target of the test : A Microsoft Exchange 2013/2016 server

Agent deploying the test : An internal/remote agent

Outputs of the test : One set of results for each delivery component engaged in email delivery

Configurable parameters for the test
  1. Test period - How often should the test be executed
  2. Host - The host for which the test is to be configured.
  3. port – The port at which the host listens.
Measurements made by the test
Measurement Description Measurement Unit Interpretation

90th percentile message latency:

Indicates the maximum time spent by this delivery component in processing the delivery of emails 90% of the time.

Secs

By comparing the values of these measures across delivery components, you can identify where email delivery is bottlenecked.

95th percentile message latency:

Indicates the maximum time spent by this delivery component in processing the delivery of emails 90% of the time.

Secs

 

99th percentile message latency:

Indicates the maximum time spent by this delivery component in processing the delivery of emails 99% of the time.

Secs