emails blocked on 3 pc and 2 mobiles

Question

outlook emails blocked <mod: PII redacted>@quicknet.nl <mod: PII2 redacted>@quicknet.nl <mod: PII3 redacted>@quicknet.nl sms code via <mod: PII phone number redacted> blocked.

Internet provider Ziggo did not block anything. already a week more problems.

Answer 1

Dear Gerrit Rot ,

Thank you for posting your question in the Microsoft Q&A forum.

Based on your description, the error AADSTS50020 means that your personal account is not a member of the tenant, so Azure AD blocks the login. Kindly check if you are login to the exact account in your organization or requesting your IT Admin if your personal account has been added as a guest to sign in successfully.

If your account has been added to the tenant but the issue persists, kindly follow this instruction via Microsoft article to help you resolve the issue: Error AADSTS50020 - User account from identity provider does not exist in tenant | Microsoft Learn.

Note: Please understand that as a forum moderator, my primary goal is to provide helpful guidance and support through general troubleshooting steps. While I don’t have access to internal systems or test devices required to resolve backend/account issues, I truly appreciate your understanding of these limitations.

Thank you for choosing Microsoft, and I am looking forward to your response. If anything is unclear or you need further assistance, please don’t hesitate to reach out to me.

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Answer 2

Request Id: e0cd0186-171b-4d49-9d80-541070130800

Correlation Id: (PII removed)

Timestamp: 2026-02-21T11:27:25Z

Message: AADSTS50020: User account '<mod: PII redacted>@outlook.com' from identity provider 'live.com' does not exist in tenant 'Microsoft' and cannot access the application 'eea5f4ef-dd4d-4755-aa86-3e0283223b97'(DevRelMC) in that tenant. The account needs to be added as an external user in the tenant first. Sign out and sign in again with a different Azure Active Directory user account.