Sending, receiving, and organizing email in Outlook on the web for business
Dear Jim House-SLU,
Good day! Thank you for posting to Microsoft Community. We are happy to help you!
I understand that you have a query on Reviewing flagged emails across all folders in Outlook Web App.
From testing in Outlook web client currently there is no option to filter flagged emails across all folders directly in OWA.
While testing and I found you can view all flagged emails (regardless of folder) by Using Microsoft To Do to review all the flagged email from Outlook.
To manage your flagged email directly in Microsoft To Do, sign in with the same work, school, or personal Microsoft account that you use for email.
Note: This feature is only available if you’re using an account that’s hosted by Microsoft, such as an Outlook.com, Hotmail.com, or Live.com account. It’s also available if you’re using an account hosted by Microsoft but using a custom domain.
To see your flagged email tasks, navigate to the list menu, then select Flagged email>Create.
| Alternatively, you can turn the list on in Settings. <br>https://to-do.office.com/tasks/settings | ![]() |
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Once turned on, email flagged in Outlook will appear as tasks in Microsoft To Do. The task's name will be the subject of the flagged message and will include a preview of the email's text in its detail view. To open the original email, select the option to Open in Outlook from the task's detail view.

Items in the flagged email list can be renamed, assigned due dates and reminders, added to My Day, and marked as important.
Note: The flagged email list only shows tasks from messages flagged in the last 30 days. It’ll show a maximum of 100 of your most recently flagged messages.
For your reference Using Microsoft To Do with flagged email from Outlook
Given the situation we’d like to invite you to leave feedback to our related team where the engineers cherish your valuable ideas much Outlook · Community (microsoft.com). As you know many products’ services have been designed based on customers’ constructive ideas and comments.
We look forward to your response. Thanks for your cooperation.
Sincerely,
Anesu | Microsoft Community Moderator
