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Email domains of external users

Last updated Reports Microsoft 365

AI summary

View the top 50 external user email domains in your Microsoft 365 environment as a donut chart. This helps you understand which external domains are in use and configure your allowed domains.

SecurityDonut chartRecommendedGenerally available

Shows the domains of external user emails to be able to configure allowed domains.

What it shows

The report shows User objects from the Microsoft 365 inventory.

The rule

Every User where Is External is true and Account enabled is true

Chart

Chart typeDonut chart
Grouped byUser Email Domain
MeasureNumber of User objects
LimitTop 50

In Rencore Governance

The Email domains of external users report in Rencore Governance: the chart, its values and the objects behind them
The report in a Rencore demo Environment, captured October 2026.

Details

Reports onUser
ConnectorMicrosoft 365
CategorySecurity
Chart typeDonut chart
RecommendedYes
StatusGenerally available

Frequently asked questions

What does the email domains of external users report show?

The Email domains of external users report: shows the domains of external user emails to be able to configure allowed domains.

What is the rule of the email domains of external users report?

Every User where Is External is true and Account enabled is true.

Which objects does the email domains of external users report use?

The Email domains of external users report works on User objects from the Microsoft 365 inventory and shows them as a donut chart.

Which module includes the email domains of external users report?

The Email domains of external users report comes with the Microsoft 365 connector in the Digital Workplace module of Rencore Governance, which every Plan includes.