RM526780 - Microsoft Teams: Tenant-Owned Domain Impersonation Protection for Teams Messaging
Microsoft 365 Roadmap
Summary
Identify if an external user comes from a domain that is impersonating the recipient tenant's own domains, during their initial contact with an enterprise user via Teams messages.
Identify if an external user comes from a domain that is impersonating the recipient tenant's own domains, during their initial contact with an enterprise user via Teams messages.