Exchange Online Monitoring

Exchange Online - An Overview

Exchange Online is a business-class email and calendaring service developed by Microsoft and hosted in the public cloud. It is available as a stand-alone service or as part of an Microsoft 365 plan. Exchange Online provides the benefits of a cloud-based email service with the robust capabilities of an on-premises Exchange server deployment.

Monitoring Exchange Online - What we do

Applications Manager gathers long-term data and present detailed reports for Exchange Online, such as mailbox statistics, Exchange Online service health, endpoint connectivity and dozens of other details.

Note: Microsoft 365 Services are supported only on Windows installations of Applications Manager

Monitored Parameters

Go to the Monitors Category View by clicking the Monitors tab. Click on the Exchange Online monitors under the Cloud Apps table. Displayed is the Exchange Online bulk configuration view distributed into three tabs:

  • Availability tab displays the Availability history for the past 24 hours or 30 days.
  • Performance tab displays the Health Status and events for the past 24 hours or 30 days.
  • List view enables you to perform bulk admin configurations.

You can also navigate to the Exchange Online bulk configuration view through the Exchange Online tab in the Microsoft 365 Monitor page.

Click on the monitor name to see all the server details listed under the following tabs:


Parameter Description
Exchange Online Service Health
Service – Feature The Exchange Online Service – Feature Name
Status The status of the Service – Feature
Affected Tenant Count The number of tenants potentially affected by service incident.
Affected User Count The number of users potentially affected by service incident.
Last Updated Time The last updated time for service incident.
Description The description of the service incident.
Endpoints Connectivity
Endpoint The Exchange Online endpoint / URL
Port The port on which endpoint / URL is accessible
Status The status of endpoint/ URL
Response Time The time taken for connecting to endpoint/URL

Mailbox Statistics

Parameter Description
Top Mailboxes by Size
Mailbox UserName The mailbox account username
Total Mailbox Size(MB) The total size of Mailbox in MB
Number of Items The number of items in mailbox
Inactive Mailbox Users
Mailbox UserName The Mailbox account username
Last Logon Time The last Login Time of Mailbox User