Microsoft Security | Microsoft Entra | Microsoft Entra External ID
Managing external identities to enable secure access for partners, customers, and other non-employees
Invitations are blocked for this directory due to suspicious activity – 2 of 12 student guests failed
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I am the author of this question. Please delete it, as the issue is now being handled through an official Microsoft support request.
Microsoft Security | Microsoft Entra | Microsoft Entra External ID
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