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Question

I can't find any problem when I log in. Mail is in the account but I cannot access it and it is not being sent to the inbox.

Answer 1

Hi Mark Olberding

Thanks for your post. From what you described, the mailbox itself still contains mail when you sign in but not showing in the Inbox.

To avoid repeating the steps in the Q&A Assist reply, could you please confirm whether you already tried them, and if you did, what happened? Do you see any specific error message?

Also, to make sure I guide you correctly, could you please try and clarify: When you sign in to Outlook.com in a web browser, do the missing emails appear in the Inbox there?

In the meantime, please try the following steps:

1, Start Outlook in safe mode

• Close Classic Outlook app completely
• Press Windows + R, type outlook.exe /safe > press Enter
• If Outlook is stable in Safe Mode, disable add-ins (Go to File > Options > Add-ins > Manage: COM Add-ins > Go) and re-enable them one by one to find the culprit.

2, Repair Office (Online Repair) and, if needed, create a new Outlook profile:

Please follow the official troubleshooting steps here: Outlook crashes or stops responding when used with Office 365 - Microsoft Support

Feel free to let me know how it goes so I can assist you further. I truly appreciate your time and understanding.

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Answer 2

Follow these steps to troubleshoot Outlook not delivering mail to the inbox even though the account looks fine:

1. Confirm the account itself is healthy
   • If this is an Outlook.com address, first make sure the Microsoft cloud storage and mailbox are not full. If storage is full, sending and receiving stop and messages sent to the account are bounced and unrecoverable. Check mailbox storage using the storage link mentioned in the Outlook.com article.
2. Check for filters, Focused/Other, and sort order
   • In Outlook.com (via a browser), check the Other tab and any filters that might hide messages. Restore chronological order by selecting Filter > Sort > Date.
3. Check Junk and rules
   • In Outlook.com, review Junk Email settings and the Junk Email folder. If legitimate messages are there, right‑click and choose Mark as not junk to move them back to the inbox.
   • Check for any email rules or forwarding that might be moving or redirecting messages away from the inbox.
4. Check connected apps and protocols
   • If using Outlook for Windows with an Outlook.com account, and also using other mail apps, ensure those apps support modern authentication and IMAP as required. See the guidance in Modern Authentication Methods now needed to continue syncing Outlook Email in non-Microsoft email apps.
   • If IMAP or POP are enabled and used by another app, they can sometimes cause issues. Temporarily disable IMAP and POP for the account and test again, following POP, IMAP, and SMTP settings for Outlook.com.
5. If only one device has the problem
   • If mail appears correctly in Outlook.com on the web but not in Outlook for Windows, remove and re‑add the account in Outlook for Windows so it re-establishes the sync partnership. Removing the device/mailbox partnership often fixes sync issues.
6. If specific senders cannot reach the inbox
   • If the issue is with a particular sender and there is no error visible in Outlook, ask the sender to review Sender Support in Outlook.com for guidance on why messages may not be delivered.
7. If you see a specific connection error
   • If the error text (for example in non‑delivery reports) says “The recipient server did not accept our requests to connect,” update the email address/alias as described in Add or remove an email alias in Outlook.com.

If none of these steps resolve the issue, use the Outlook.com interactive troubleshooter and, if needed, contact Outlook.com support from the Help menu while signed in.

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References:

• Can't send or receive email in Outlook.com