Calendar Problems

Why Microsoft Bookings Sends Duplicate Confirmation Emails to Deleted Items

Steve K Oct 10, 2026 868 views

Question details

Users receive two appointment confirmation messages from Microsoft Bookings, where one correctly lands in the Inbox while a duplicate is automatically routed to the Deleted Items folder.

Why Microsoft Bookings Sends a Duplicate Confirmation to Deleted Items

Product: Microsoft Bookings
Device & OS: not provided
Scenario: Managing scheduled appointments and receiving automated confirmation emails via Microsoft Bookings.
Observed behavior: Two duplicate appointment confirmation emails are generated; one arrives in the Inbox, and the second is immediately moved to the Deleted Items or Trash folder regardless of Outlook rules.

Before you start

Ensure you have access to your staff calendar and Microsoft 365 administrative settings before troubleshooting your Outlook email routing options.

Solution 1Recommended

Verify Calendar Events and Expected Design Behavior

Confirm that the appointment details are successfully saved in your calendar, as the duplicate email behavior is often by design and does not affect the booking.

Community testing indicates that this specific duplicate email routing is a standard Microsoft Bookings design behavior. The system intentionally sends a secondary notification that lands in the Trash or Deleted Items folder.

Open Staff Calendar

Open your Outlook calendar or the specific Bookings staff calendar and navigate to the date of the scheduled appointment.

Verify Appointment Details

Check that the appointment block exists and click on it to ensure all booking details, client information, and meeting links are fully stored within the calendar event.

Ignore the Duplicate Email

As long as the event is securely on the calendar, you can safely ignore or permanently delete the secondary confirmation email found in your Deleted Items folder.

Verify Calendar Events and Expected Design Behavior

Expected Product Behavior: This behavior occurs specifically with Bookings appointments (unlike Zoom or Teams). Since it is considered expected product behavior by Microsoft, standard Outlook rules will not bypass it.

Solution 2

Review Outlook Rules and Automatic Processing Options

Ensure that no hidden rules or automatic meeting processing settings are accidentally forcing other important Bookings emails into the trash.

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Frequently Asked Questions

Why does Microsoft Bookings send two confirmation emails?

Microsoft Bookings often generates a primary confirmation delivered to the Inbox and a secondary automated notification that is immediately routed to the Deleted Items folder. This is currently recognized as an expected design behavior within the Bookings application.

Will my appointment be canceled if the duplicate email goes to Trash?

No. As long as the appointment is correctly saved and visible in your staff or Bookings calendar, the deletion of the secondary confirmation email does not affect the scheduled event in any way.

Can I stop Bookings from sending duplicate emails to my Deleted Items folder?

Since this routing is tied to Microsoft Bookings' internal design behavior, you cannot completely stop it through standard Outlook rules. However, you can verify your 'Automatic Processing' settings in Outlook to ensure standard meeting requests aren't being inadvertently deleted upon receipt.

Outlook & Email Problems