MC1266026 - One-time email passcodes for external presenters in Teams events

Introduction

One-time Email Passcodes provide a way for tenant administrators and event organizers to verify anonymous, external presenters invited to Microsoft Teams events. When enabled, anonymous external presenters are prompted to enter a one-time email passcode before joining an event and receive a Verified label next to their name after joining.

External presenters with personal or work Microsoft accounts are asked to sign in to their account for verification instead of receiving a one-time email passcode.

This message is associated with Microsoft 365 Roadmap ID 557975.

When this will happen:

• Targeted Release: We will begin rolling out late April 2026 and expect to complete by early May 2026.
• General Availability (Worldwide): We will begin rolling out mid-May 2026 and expect to complete by late June 2026.

How this affects your organization:

Who is affected:

• Tenant administrators managing Microsoft Teams policies
• Event organizers scheduling Teams events with external presenters
• External presenters joining Teams events anonymously

What will happen:

• Tenant administrators can require verification for anonymous external presenters by configuring a new Teams Admin Center policy or by using PowerShell.
• Based on the tenant-level policy, event organizers will have additional options that apply to all external presenters for an event:
  • Verify external presenters, allowing only invited accounts to join.
  • Verify external presenters, allowing uninvited users to wait in the lobby.
  • No verification (available only if the tenant policy also allows no verification).
• This distinction allows organizers to restrict an event to invited external presenters or allow more flexibility by permitting uninvited users with the event link to join through the lobby.
• By default, the policy is set to None, allowing external presenters to join anonymously.
• When the policy is set to eOTP, all external presenters must verify their identity either by signing in with a Microsoft account or by entering a one-time email passcode.

What you can do to prepare:

• Review how external presenters are used in your Teams events.
• Decide whether anonymous external presenters should be required to verify their identity.
• Configure the external presenter verification policy in the Teams Admin Center or by using PowerShell.
• Inform event organizers about the new verification options available to them.

Learn more: Allow anonymous presenters in a live event in Microsoft Teams | Microsoft Support (will be updated before rollout)

Compliance considerations:

Compliance area	Explanation
New customer data stored	Email addresses are used to deliver one-time passcodes to anonymous external presenters.
New way of communicating between users or tenants	Introduces email-based verification communication between tenants and anonymous external presenters.
Admin control introduced	A new Teams Admin Center policy allows administrators to require or disable verification for external presenters.