Message Center
Updated June 30, 2026: We have updated the content. Thank you for your patience.
What and Why
We are updating how Microsoft Teams sends guest invitation emails to improve clarity and trust in cross-tenant collaboration. Instead of being sent from a Microsoft no-reply address, guest invitation emails will soon appear to come directly from the inviter’s email address.
This change helps recipients easily recognize who invited them, enables direct replies, and reduces confusion, improving the overall collaboration experience.
Rollout Schedule
General Availability (Worldwide, GCC, GCC High, DoD): We will begin rolling out in late June 2026 and expect to complete by late July 2026.
Impact on Your Organization
Who is affected
Platforms/Services
What will happen

Action Required / Recommendations
No action is required.
However, we recommend that you:
Learn more:
Compliance considerations
| Question | Answer |
| Does the change provide a new way of communicating between users, tenants, or subscriptions? | Yes. External guests can now directly reply to the inviter via email, enabling a new communication path tied to the invitation workflow. |
| Does this change apply to guest invitations sent by admins through the Teams Admin Center or other admin portals? | No. This change only applies to guest invitations initiated from the Teams client application. If an administrator sends a guest invitation through the Teams Admin Center (TAC) or any other portal outside of the Teams client, the invitation email will continue to be delivered from Microsoft's no-reply email address. |
What and Why
We are updating how Microsoft Teams sends guest invitation emails to improve clarity and trust in cross-tenant collaboration. Instead of being sent from a Microsoft no-reply address, guest invitation emails will soon appear to come directly from the inviter’s email address.
This change helps recipients easily recognize who invited them, enables direct replies, and reduces confusion, improving the overall collaboration experience.
Rollout Schedule
General Availability (Worldwide, GCC, GCC High, DoD): We will begin rolling out in late June 2026 and expect to complete by late July 2026.
Impact on Your Organization
Who is affected
Platforms/Services
What will happen

Action Required / Recommendations
No action is required.
However, we recommend that you:
Learn more:
Compliance considerations
| Question | Answer |
| Does the change provide a new way of communicating between users, tenants, or subscriptions? | Yes. External guests can now directly reply to the inviter via email, enabling a new communication path tied to the invitation workflow. |