How to detect if the email notification from no-reply@microsoft.com from our SharePoint Online tenant or an external tenant?

frob 4,216 Reputation points
2023-05-11T20:06:07.4466667+00:00

Hi there

In our organization, we need to mark email notifications from external SharePoint Online tenants as "External", and white list the ones sent from our own tenant.

How to detect if the email notification from no-reply@microsoft.com is from our SharePoint Online tenant or an external tenant?

Thank you.

Microsoft 365
Microsoft 365
Formerly Office 365, is a line of subscription services offered by Microsoft which adds to and includes the Microsoft Office product line.
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SharePoint
SharePoint
A group of Microsoft Products and technologies used for sharing and managing content, knowledge, and applications.
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Accepted answer
  1. Nick Garver 75 Reputation points Microsoft Employee
    2023-06-06T02:14:18.78+00:00

    You can create a transport rule in Exchange to flag them if they came from an external address outside of your tenant.


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