Dear @Cathy Williams,
Good day! Welcome to Microsoft Q&A forum!
Based on your description, I understand that many emails have unexpectedly disappeared from several of your Outlook folders, are not located in Deleted Items, and this is significantly impacting your ability to work.
I sincerely apologize for the inconvenience caused by this issue.
To understand the situation better and provide you with the most suitable support, could you confirm the following information:
- I could see that your question is in the "For education" forum/tag, but to better support you, may I reconfirm: Are you using a personal account (e.g. @outlook.com, @hotmail.com) or a work/school account (e.g. @company.com, @edu)?
- Are you using New Outlook desktop app or Classic Outlook desktop app?
- New Outlook UI:
-

- Classic Outlook UI:
-

- Are the missing emails in one folder, multiple folders, or most of your mailbox?
- Does this happen on one device only, or every other device you sign in?
- Are other people in the same organization with you experiencing similar issues?
Your confirmation would be very helpful in ensuring you receive the most suitable support!
If you’re able to share a bit more about your situation, I might be able to suggest some helpful next steps.
Please understand that our initial response does not always resolve the issue immediately. However, with your help and more detailed information, we can work together to find a solution.
Kindly let me know when there are updates or if you need further assistance. Any updates you’re able to share would be really helpful. I appreciate your time and look forward to hearing how things are going!
Thank you for your time and patience.
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