Fix Microsoft Bookings Staff Receiving Emails When Notifications Are Disabled
Question details
Microsoft Bookings staff members are still receiving email notifications, including undeliverable messages, even after booking notifications have been explicitly disabled.

- Product
- Microsoft Bookings
- Device & OS
- not provided
- Scenario
- Managing staff notification settings to prevent unnecessary emails or undeliverable bounce-backs for test addresses.
- Observed behavior
- The system continues to route booking notification emails to staff and test addresses despite the notification settings being turned off.
Verify that the notification checkbox under each specific staff member's profile in your Bookings settings is actually unchecked before proceeding with advanced troubleshooting.
Verify Staff Settings and Escalate to Dedicated Bookings Support
Because standard Exchange Online support has limited expertise with Bookings routing bugs, escalating to the dedicated Microsoft Bookings community is the recommended path for service-level investigation.
Microsoft Bookings has unique backend routing mechanisms. When email notifications continue firing despite being disabled in the UI, it often indicates a service-level sync issue rather than a standard Exchange Online problem.
Log into Microsoft 365, open the Bookings app, navigate to the 'Staff' tab, and select the affected staff member. Ensure the 'Notify the staff member via email when a booking assigned to them is created or changed' option is completely unchecked.
If you are receiving 'undeliverable' messages for test accounts, temporarily remove or update the dummy email addresses from the staff list to stop the Exchange server bounce-backs.
Go to the official Microsoft Tech Community and search for the dedicated Microsoft Bookings forum, as standard Microsoft 365 support agents may lack the specific tools to fix this.
Post your question in the Bookings community, explicitly stating that notifications are disabled but still sending, and provide details about any undeliverable messages so specialists can investigate your tenant's delivery behavior.

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Frequently Asked Questions
Why do test email addresses generate undeliverable messages in Bookings?
If a staff member is created with a fake or inactive email address for testing purposes, the Bookings system may still attempt to route calendar updates to it. The Exchange server will then bounce these emails back as undeliverable since the inbox does not actually exist.
Does disabling customer notifications automatically disable staff notifications?
No, customer and staff notifications are managed entirely separately in Microsoft Bookings. You must explicitly disable staff notifications within each individual staff member's profile settings.
Can standard Exchange Online support fix my Bookings email issues?
Typically, no. The standard Microsoft 365 Exchange support team has limited visibility into the specific routing mechanisms of Microsoft Bookings. It is highly recommended to reach out directly to the dedicated Microsoft Bookings community for specialized assistance.




