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An external user cannot access Teams and appears as a member with an @sns.it email: why?
Description
Topics: Email, Mailing Lists, and Collaboration
This is a known issue: an external user added as a guest may appear among members and be associated with an @sns.it address instead of the one originally provided, preventing access. Intervention by the Help Desk is required to correct a value in the user records. Please report the username and the email address used for the invitation.
Last modification: 06/05/2026