Missing emails from my account

Question

I am missing a load of emails from my account. I go from today to October and nothing in between

Answer 1

Dear @Ford, David, 

Thank you for posting your question in the Microsoft Q&A forum.   

I understand how inconvenient it is to see a gap in your mailbox, especially when emails are missing between October and today. Below are the most common reasons this issue can occur, along with the steps you can use to check each one: 

A view or filter is hiding messages: Sometimes a filter or customized view causes emails to disappear from the list even though they are still in the folder. 

• Focused Inbox is separating your messages: Focused Inbox splits your messages into Focused and Other, and emails in one tab may seem missing if you only view the other tab. 
• Rules or Sweep settings have moved messages: Inbox rules or Sweep actions may automatically move or delete messages, sometimes based on date or sender. 
• Messages were deleted but are still recoverable: Even if Deleted Items has been emptied, emails may still be recoverable from the Recoverable Items area. 
• AutoArchive or an Online Archive moved older mail: Depending on configuration, messages may have been moved to an Archive folder or an In-Place Archive mailbox. 
• Retention policies managed by the organization: If your organization uses retention policies or labels, messages may be moved or deleted automatically based on age or folder rules. 

Please see the following workarounds that will help you verify the issue:  

Note: Since your post is tagged for the new Outlook app, the instructions above reflect that version. If you are using classic Outlook instead, feel free to tell me and I will provide the exact steps. 

Ensure your Windows operating system and New Outlook desktop app are fully updated.   

Option 1: Check Outlook on the web 

Clear your browser cache for “All time” > Sign in again at office.com with your work account, Select Apps > Outlook.  

Review the same folder where emails appear missing. 

If messages appear in OWA, the issue is specific to the Outlook client settings. 

If they are not visible, go to Deleted Items and check Recover items deleted from this folder. 

Option 2: Clear filters or custom views 

Open the folder where emails appear missing. 

Select View. 

Clear any filters related to date, read or unread status, category, or size. 

Reset the view to default if available. 

Option 3: Review Focused Inbox 

Go to your Inbox. 

Switch between the Focused and Other tabs. 

Option 4: Review Rules and Sweep settings 

Open Settings. 

Select Mail then Rules. 

Review any rule that moves, deletes, or redirects messages. 

In Outlook on the web, also check Sweep settings for any automated cleanup actions. 

Option 5: Check Deleted Items and Recoverable Items 

Open Deleted Items. 

Select Recover items deleted from this folder. 

Restore any messages you recognize. 

Option 6: Review Archive folders 

Look for a folder named Archive within your mailbox. 

If your organization uses an Online or In‑Place Archive, check below your primary mailbox to see if the missing emails were moved there. 

If the archive mailbox should appear but does not, let me know and I can help guide you through enabling it. 

Option 7: Clear Outlook cache 

Refreshing the cache can resolve unexpected client-side behavior.  

Close the Outlook app completely.     

Open the Run dialog by pressing Windows + R.     

Type or paste the following command and click OK:     

olk.exe --devtools     

The new Outlook will open (you may need to sign in), and the DevTools window will appear.   

In DevTools:      

Click Application on the toolbar.     

Clear local storage cache: Under Storage, find https://outlook.office.com., under Local Storage, right-click it, and select Clear.     

Clear cookies: Under Cookies, locate https://outlook.office.com., right-click it, and select Clear.     

Close the DevTools window.     

Once completed, the cache for the new Outlook will be cleared. Please note that this process removes temporary files, including saved login credentials, so you may need to sign in again.  

Option 8: Repair Outlook 

This article provides further guidance on the topic: Repair an Office application - Microsoft Support  

As community moderators, we kindly ask for your understanding that our access to internal development details is limited. Our primary role is to guide users toward the appropriate resources and support channels. While we may not have visibility into performing deeper backend analysis, we’ll continue doing our best to support you within the scope of our responsibilities.  

I hope this information is helpful. If you have any questions or need further support, please don’t hesitate to reach out at any time. 

Thank you for your patience and understanding. 

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Answer 2

If you are missing emails from your account, there are several potential causes and steps you can take to investigate the issue:

1. Check for Deleted Emails: Use the Microsoft Purview audit log to investigate missing email messages. This can help you identify if emails were deleted by users or administrators, or if they are missing due to migration or sync issues.
2. Mailbox Rules and Retention Policies: Sometimes, emails can be removed by mailbox rules or retention policies. Check your mailbox settings to see if any rules might be affecting your incoming emails.
3. Cached Mode Issues: If you are using Outlook in Cached mode, sometimes new messages may not appear in your Inbox due to synchronization issues. Ensure that your Outlook is properly synchronized with the server.
4. Search Folders: Check if the emails are being diverted to a different folder or if they are hidden due to search folder settings in Outlook.
5. Contact Support: If you are unable to resolve the issue, consider reaching out to Microsoft support for further assistance.

Following these steps should help you identify the cause of the missing emails and potentially recover them.

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References:

• Identify who deleted an email message or why an email is missing
• Sometimes emails do not appear in Cached mode Inbox even if they were synchronized down from mailbox